Rubeus Hagrid is the keeper of the keys and gameskeeper during Harry's first year at Hogwarts, of enormous build. He picks Harry up from the Dursleys and introduces him to the Wizarding World. He appears in several chapters.
"Rubeus Hagrid is the Keeper of Keys at Hogwarts School of Witchcraft and Wizardry. He is almost twice the height of a normal man and at least five times the width, with feet the size of baby dolphins and hands the size of dustbin lids. His black eyes glint like beetles and his face is almost completely hidden by a wild, tangles beard and bushy, black hair. Despite his size, hagrid is gentle and warm. Hagrid lives with his large black boarhound in a wooden hut within the grounds at Hogwarts, at the edge of the Forbidden Forest. Professor Dumbledore says he would trust Hagrid with his life. His well-meaning culinary attempts are enthusiastic, but leave much to be desired - Harry , Ron and Hermione often have to dodge eating stoat sandwiches and Rock Cakes ."
"Hagrid introduces Harry to the wizarding world, taking him to Diagon Alley, helping him buy all the things he needs for school, and buying him an owl. While helping Harry withdraw money for his supplies from Gringotts, Hagrid visits a second vault to retrieve a grubby brown package on Dumbledore's orders, the contents of which are highly secret.
"Although Hagrid was expelled in his third year at Hogwarts (for reasons he won't explain to Harry) and his wand sapped in half, he seems able to do magic. He has a pink umbrella that he uses to, among other things, curse Dudley and speed up a boat. When Mr. Ollivander questions wether Hagrid still uses the pieces of his wand, Harry notices that Hagrid clutches his umbrella very tightly."
The next day, Hagrid tells Harry he is taking him to buy the things he will need for school. He tells Harry they will be going to Gringotts, the wizarding bank, for the money to pay for his school things. He tells Harry all about the wizarding world as they make their way to London from the hut on the rock.
Hagrid takes Harry to a bustling Muggle street in London, where they enter the Leaky Cauldron pub. He seems to know all of the people in the pub, and is greeted by everyone. He tells Tom, the barman, that he is there on official Hogwarts business, clapping Harry on the shoulder. Hagrid beams as those in the pub greet Harry, and introduces him to Professor Quirrell. He leads Harry to a walled courtyard at the back of the Leaky Cauldron, and uses his umbrella to tap a brick in the wall, making the entrance to Diagon Alley reveal itself. Hagrid leads Harry into Diagon Alley towards Gringotts Bank.
Hagrid leads Harry into Gringotts Bank, and towards the counter. He struggles to find Harry's vault key in his voluminous coat, but eventually produces a tiny golden key. He also gives the goblin a letter from Professor Dumbledore, telling him it's about the 'You-Know-What' in vault seven hundred and thirteen.
Hagrid doesn't enjoy the journey to the vaults, and exits the cart at Harry's vault looking slightly green. They travel further underground towards vault seven hundred and thirteen, from which Hagrid takes a grubby little package wrapped in brown paper.
Hagrid leaves Harry at Madam Malkin's and goes to get a pick-me-up from the Leaky Cauldron after the journey in the Gringotts carts. He meets Harry as he leaves Madam Malkin's, and they continue shopping.
Hagrid takes Harry around more of the shops in Diagon Alley, helping him to buy more school equipment. Hagrid buys Harry an owl from Eeylops Owl Emporium as a birthday present, telling him that they are the most useful animals to have. He saves buying a wand till last, finally leading Harry into Ollivanders: Makers of fine Wands since 382 BC.
Although Hagrid was expelled in his third year at Hogwarts (for reasons he won’t explain to Harry) and his wand snapped in half, he seems able to do magic. He has a pink umbrella that he uses to, among other things, curse Dudley and speed up a boat. When Mr Ollivander questions whether Hagrid still uses the pieces of his wand, Harry notices that Hagrid clutches his umbrella very tightly.
Hagrid accidently divulges important pieces of information to Harry, Ron and Hermione about the Philosopher's Stone, sometimes without intending to do so. He tells the trio what kind of enchantments are protecting the Stone when asked, and lets it slip that someone named Nicolas Flamel is involved.
In the spring, Hagrid acquires a dragon's egg – trade of which is banned in the wizarding world. The egg hatches into a fire-breathing Norwegian Ridgeback dragon that Hagrid names Norbert. Within a week of its birth it becomes three times its size, bites Ron and Hagrid, and nearly sets fire to Hagrid’s wooden house. Harry, Ron and Hermione devise a plan to get Norbert out of the school safely, and arrange for the dragon to be collected and taken to Ron’s older brother, Charlie, in Romania.
In the summer term, Hagrid admits to Harry that he acquired Norbert’s egg from a cloaked stranger at the Hog’s Head pub. Hagrid says the stranger was very interested in how to get past Fluffy, the three-headed dog guarding the underground chambers protecting the Philosopher’s Stone. Hagrid recalls the conversation, again accidentally revealing vital information: that Fluffy will fall fast asleep if he is played music.
After Harry confronts Quirrell and Voldemort, Hagrid feels terribly guilty for giving Harry so much of the information that led him to danger. He takes a day off work (though he claims Dumbledore should have sacked him instead) to gather photographs from Harry’s parents’ friends, and presents the young wizard with a leather-covered photo album full of photos of James and Lily Potter.
Hagrid, carrying a dead rooster, bursts into Dumbledore’s office after the attack on Justin Finch-Fletchley and Nearly Headless Nick, shouting that Harry could not have been responsible for the attacks.
Tom Riddle shows Harry a memory in which a young Hagrid appears to be trying to coax a very large spider into a box, and Riddle accuses him of being the heir of Slytherin. This is why Hagrid was expelled in his third year and it leads Harry to believe that Hagrid opened the Chamber fifty years ago.
After the attack on Hermione, Harry and Ron decide to visit Hagrid to see what he knows. Hagrid seems upset and shaken; he opens the door for Harry and Ron holding a crossbow. Shortly thereafter he is arrested on suspicion of opening the Chamber of Secrets, and removed to Azkaban.
Hagrid is thrilled to have been made Care of Magical Creatures teacher. In his first lesson he leads the Gryffindors and Slytherins to a paddock on the edge of the Forbidden Forest. He is thrown by the fact that none of the class has been able to open The Monster Book of Monsters. His confidence knocked by Draco Malfoy's snide remarks, Hagrid goes to fetch the Magical Creatures: Hippogriffs. He shows the Hippogriffs to the class, and instructs them on how to approach the animals. Hagrid is thrilled when Harry volunteers to go first, and unties Buckbeak for him to meet. Harry's success encourages the class, and Hagrid unties the rest of the animals one by one. When Draco insults Buckbeak and is attacked, Hagrid has to wrestle the Hippogriff into his collar. Carrying Draco, he runs to the castle, towards the hospital wing. When Harry, Ron and Hermione visit his hut, it is obvious that Hagrid has been drinking a lot. He is increasingly depressed about the attack, and worries that he is going to be sacked. As Hagrid sobers up, he seems to realise for the first time that the trio are there. He is furious that Harry is out of the castle after dark, and is angry with Hermione and Ron for allowing him to be. He marches them back to the school.
Hagrid enters the Three Broomsticks deep in conversation with Cornelius Fudge. Along with McGonagall and Flitwick, the pair sit at the table next to Harry, Ron and Hermione. When the conversation at the table turns to Sirius Black, Hagrid becomes upset. He tells the table that he met Sirius Black outside the Potters' house the night they were killed, when Black turned up on his flying motorbike. Black was white and shaking, and Hagrid assumed he had just heard about the Potters. Hagrid is upset at the thought that he comforted the man who had caused the Potters' deaths. Hagrid says that Black offered to take Harry, but that he wanted to obey Dumbledore's orders and take Harry to the Dursleys. He is distraught by the idea that he could have given Harry to a murderer.
Hagrid invites Ron and Harry for tea one evening. He tells them to wait for him in the Entrance Hall as they aren't allowed out on their own. Hagrid reminds Harry that Buckbeak's appeal is the coming Friday, and tells them that he will be taking Buckbeak to London with him. He tell the boys that he wants to discuss Hermione with them, defending her and Crookshanks, and telling Harry and Ron that he thought they would value their friendships more than broomsticks and rats. He walks them back up to the castle later in the evening.
Hagrid sends Harry a note, telling him that Buckbeak's appeal is set for the sixth. He writes that the appeal will be held at Hogwarts, with someone from the Ministry attending, and an executioner. Hagrid seems preoccupied as he presides over the Care of Magical Creatures exam. He tells the students that, to pass their test, they have to keep a Flobberworm alive for an hour. Under the pretence of checking Harry's Flobberworm, he talks to the trio about Buckbeak.
Hagrid is momentarily confused when he opens his door and sees no one there. When he hears Harry, he tells the trio that they shouldn't have come, but lets them come inside. He offers them tea, but trembles violently as he tries to make it, dropping the milk jug on the floor. He tells them that he doesn't want them watching the execution, and that there will be trouble if Harry is caught there. Through his window, Hagrid spots a group of men walking down the castle steps, and asks the trio to leave. He comforts Buckbeak as he lets the three of them out through his back garden, and tells them to hurry back to the castle.
The execution Committee arrive at Hagrid's front door and his voice croaks as he tells them that Buckbeak is outside. Hagrid listens to Fudge as the official notice of execution is read out, and signs the notice along with Macnair. Hagrid sobs in relief when he sees that Buckbeak has disappeared, and assumes that he managed to pull himself free of his tether. He sounds weak with happiness as he re-enters the house with Dumbledore. Hagrid meanders tipsily up to the castle after the Committee leaves.
Hagrid comes across the trio by the lake shore the next morning. He beams down at them, and tells them that Buckbeak escaped the night before. He tells them he has been celebrating all night. Hagrid assumes that Buckbeak escaped because he wasn't tied up properly. He mentions that he was worried about Buckbeak meeting Professor Lupin the night before, and informs the three that Lupin's secret is out.
Hagrid greets his fourth-year Care of Magical Creatures students enthusiastically, grinning at Harry, Ron and Hermione as they walk up to his cabin. He tells the students that they will be studying newly hatched Blast-Ended Skrewts during their lessons, and wants to make a project out of caring for them. He ignores Draco Malfoy's attempts to question his plans, and tells the students that their first lesson will be learning what the Skrewts like to eat, as he is not entirely certain. Hagrid grins at Harry and Ron when Hermione, in her argument with Malfoy, says that no-one would want a dragon as a pet, remembering his pet Norbert, the Norwegian Ridgeback dragon.
Along with many of the other teachers, Hagrid adds to the fourth-year workload as the term progresses. He suggests that the students come down to his hut on alternate evenings to observe the Blast-Ended Skrewts to make notes on their extraordinary behaviour. When Malfoy refuses, Hagrid references the ferret incident, and tells Malfoy that he will do what he is told, or Hagrid will take a leaf out of Professor Moody's book.
Hagrid doesn't join the rest of the school in waiting for the Beauxbatons and Durmstrang delegations to arrive, as he is attending an emergency with the Blast-Ended Skrewts.
Hagrid greets Harry, Ron and Hermione happily when they visit his cabin; he tells them he thought they might have forgotten where he lived, as he hasn't seen them in a while. Hagrid is wearing his best (and very horrible) hairy brown suit with a yellow-and-orange checked tie when the trio visit his cabin. He has tried to tame his wild hair with large quantities of what appears to be axle grease. It is slicked into two bunches, as though he tried a ponytail but found he had too much hair. Hagrid hints that he knows what the first task of the Triwizard Tournament is going to be, but doesn't want to spoil it for Harry, Ron and Hermione; he does tell them that the task is going to be spectacular and that the champions will have their work cut out for them. Hagrid produces a beef casserole for lunch, in which Hermione discovers a talon. Hagrid argues with Hermione about house-elves, and flatly refuses to join S.P.E.W. When the time comes to leave the cabin to go to the Hallowe'en feast, Hagrid asks the trio to wait for him; he starts to apply a horrible smelling eau-de-Cologne before being persuaded it is too much by Harry, Ron and Hermione's reactions. Hagrid blushes when he sees Madame Maxime leaving the Beauxbatons carriage with her students; he talks to her with a rapt, misty-eyed expression much like the one he wore when he first saw Norbert, the baby dragon he kept as a pet in Harry's first year. He trudges off up the grounds towards the castle with Madame Maxime without a backwards glance, leaving Harry, Ron and Hermione at his cabin.
During the Care of Magical Creatures lesson Hagrid asks Harry to help him with the Blast-Ended Skewts as an excuse to talk to the boy alone. He completely believes that someone else put Harry's name into the Goblet of Fire without his knowledge, and says that Harry's word is good enough for him. He sighs as he looks down at Harry with a worried expression; he doesn't understand why everything bad seems to happen to Harry.
Hagrid is in the Three Broomsticks pub with Professor Moody when Harry and Hermione arrive. He has his usual tankard in front of him, and leans low to talk to his colleague. Hagrid and Moody get up to leave, but he is diverted to Harry and Hermione's table when Moody spots Harry in his Invisibility Cloak. Hagrid beams down at Harry although he can't see him, having been told by Moody that he is there. Under the pretext of reading Hermione's S.P.E.W. notebook, Hagrid bends down and whispers to Harry to meet him at midnight at his cabin. He tells Harry to wear his Invisibility Cloak when he visits.
Hagrid opens the door to his cabin when Harry knocks at midnight. He tells Harry that he has something to show him; there is an air of excitement about Hagrid as he prepares to leave the cabin. He tells Harry to keep quiet and to keep himself covered with the Invisibility Cloak. Hagrid strides over to the Beauxbatons carriage to fetch Madame Maxime, and escorts the Beauxbatons Headmistress around the edge of the Forbidden Forest to the dragon enclosure, followed by Harry. He excitedly asks Madame Maxime if she wants to take a closer look at the dragons, and moves right up to the fence. Hagrid greets Charlie Weasley, and asks him about the four dragons in the enclosure. He gazes, enraptured, at the dragons, unconcerned that Maxime is likely to tell her champion, Fleur Delacour, about the creatures. Hagrid gazes longingly at the dragon eggs in the enclosure, wanting one for himself.
As the weather gets colder, Hagrid takes care to keep Madame Maxime's horses well provided with their favourite drink, single-malt whisky. During one Care of Magical Creatures lesson, Hagrid asks the students to help prepare the Blast-Ended Skrewts for hibernation. He isn't sure whether the creatures hibernate during winter, but tells them to place the Skrewts in the crates and they will see what happens. As the Skrewts escape from the boxes and rampage over the pumpkin patch, Hagrid begs the class not to panic, as he tries to catch the creatures.
Hagrid is curious when Rita Skeeter appears during his class, having thought she was banned from the school. He is reluctant to talk to her about the Blast-Ended Skrewts, flushing when she asks where they come from, but beams when Harry says that the class is one of his favourites. He agrees to have an interview with Rita Skeeter about his experience with magical creatures, and arranges to meet her in the Three Broomsticks later that week.
During the Yule Ball, Hagrid joins Madame Maxime in the garden. The pair sit on a stone bench near the fountain, watching the water in the moonlight. In an oddly husky voice, Hagrid tells Maxime that the moment he saw her, he knew. He goes on to tell her about his mother and father, and mentions that his mother is one of the last ones left in Britain. Hagrid's meaning becomes clear when he reveals that he is half-giant. He offends Madame Maxime by suggesting that she is a half-giant as well, and he is left alone on the bench as she storms off. After about a minute, Hagrid stands up and strides away in the direction of his cabin.
Rita Skeeter reveals that Hagrid is a half-giant in an article in the Daily Prophet. His mother is the giantess Fridwulfa.
Hagrid refuses to answer his front door to Harry, Ron and Hermione after the article appears in the Daily Prophet. He is not seen for the next week; he misses meal-times, and doesn't appear to be carrying out his gamekeeper duties in the grounds.
Hagrid attempts to hand his resignation into Professor Dumbledore in the aftermath of the Daily Prophet article. He is joined by Professor Dumbledore in his cabin on the afternoon of the Hogsmeade weekend. When Dumbledore lets Harry, Ron and Hermione into the cabin, Hagrid is sitting at his table; his face is blotchy, his eyes swollen and his hair looks like a wig of tangled wire. Hagrid tears up as he hears what his friends have to say about the article, but isn't convinced by their words. Although he was shown the letters Professor Dumbledore was sent by countless parents, threatening action if Hagrid is sacked, he is more concerned by those who don't want him to stay. Hagrid sobs when Professor Dumbledore leaves the cabin after informing him that his resignation is not accepted. He knows that Dumbledore is right, and tells Harry, Ron and Hermione that his dad would have been ashamed at the way he has been behaving. He shows the trio a picture of his father, sitting on top of a young Hagrid's shoulder. He knows that his father would tell him to ignore those who are small-minded about being a half-giant. He tells Harry, Ron and Hermione that he won't be bothering with Madame Maxime anymore, despite not knowing that they overheard his conversation with the Beauxbatons Headmistress during the Yule Ball. Hagrid tells Harry that when they first met, Harry reminded him a lot of himself - both parents gone, and wondering whether he would ever fit into Hogwarts. He tells Harry that he would love nothing more than for Harry to win the Triwizard Tournament, a big grin on his face when Harry says that he is getting on well with the clue for the second task.
Hagrid continues Professor Grubbly-Plank's lesson on unicorns on his return to work; whether to make up for the Blast-Ended Skrewts, or because there are only two Skrewts left, or because he is trying to prove he can teach as well as her isn't clear. He manages to capture two unicorn foals for his Care of Magical Creatures lesson with the fourth year students, and encourages the students to approach them. He moves aside slightly as the students swarm around the baby unicorns, and takes the opportunity to talk to Harry. He tells Harry that he knows he can do anything he sets his mind to, and is certain that Harry is going to win the Tournament.
In his Care of Magical Creatures lesson, Hagrid introduces the fourth year students to a new magical creature, Nifflers. He wants to give the students a fun lesson, and has hidden leprechaun gold in a large patch of earth for a treasure hunt using the creatures. When Hermione joins them near Hagrid's hut, he is sympathetic, and tells her not to worry about the hate mail. He reveals that he received several letters after Rita Skeeter's article about his mother, and advises Hermione not to open them if she receives more.
Hagrid runs towards the Forbidden Forest, to where Barty Crouch appeared, carrying his crossbow. He is sent to fetch Professor Karkaroff, and quickly returns with the Durmstrang Headmaster. Hagrid is angry when Karkaroff accuses Dumbledore of plotting against his champion; when Karkaroff spits on the ground at Dumbledore's feet, Hagrid seizes the front of his furs and lifts him into the air, slamming him against the trunk of a nearby tree. He demands that Karkaroff apologise, his fist against the Durmstrang Headmaster's throat. He reluctantly releases Karkaroff at Dumbledore's insistence, and is asked to escort Harry back to the castle. He is furious about Karkaroff's accusations, and is no less angry with Madame Maxime for trying to persuade him to tell her about the third task.
Hagrid is visited by Ron, Harry and Hermione on one Thursday afternoon, a time cleared by their cancelled Defence Against the Dark Arts lessons. He strides out to meet the friends, happy to see Harry, and leads them into his cabin. Hagrid tells them he has just been having tea with Madame Maxime, who he nonchalantly calls Olympe, and denies the implication that they haven't always been on good terms. He asks Harry how he is, knowing that Harry isn't really alright, and tells the boy that he will be soon. Hagrid says that he has known for years that Voldemort would return, and says that now he has, they will just have to prepare for the fight. Hagrid thinks that as long as Dumbledore is around, everything will be alright. Hagrid mentions that Dumbledore has a job for him to do over the summer holidays, but won't reveal to Harry, Ron or Hermione what that job is. He does reveal that he attempted to persuade Madame Maxime to go with him when they were having tea.
Hagrid helps Madame Maxime back the Beauxbatons horses into their harness on the enormous carriage, in preparation for their journey from Hogwarts.
Hagrid is fetched by Harry after Katie Bell is cursed by the opal necklace. When he reaches Katie on the path from Hogsmeade, he picks her up and runs with her back to Hogwarts. When he reaches the castle with Katie he tells Professor McGonagall that Harry, Ron, Hermione and Leanne saw what happened.
Hagrid walks slowly up the aisle between the chairs carrying Dumbledore's body, shrouded in purple velvet. He cries silently as he walks, his face gleaming with tears. Hagrid places Dumbledore carefully upon the marble table in front of the chairs and retreats down the aisle, blowing his nose loudly. He takes a seat in the back row next to Grawp. His head is patted so hard by his half-brother that his chair legs sink into the ground.