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"He used to handpick favourites at Hogwarts, sometimes for their ambition or their brains, sometimes for their charm or their talent, and he had an uncanny knack for choosing those who would go on to become outstanding in their various fields. Horace formed a kind of club of his favourites with himself at the centre, making introductions, forging useful contacts between members, and always reaping some kind of benefit in return..."
— Description of the Slug Club[src]

The Slug Club was an out-of-hours dining and social club[4] made up of Horace Slughorn's most well-liked and sometimes famous students at Hogwarts School of Witchcraft and Wizardry. Professor Slughorn, who taught Potions at Hogwarts from the 1920s to 1981 and again from 1996, sought students who were well connected, held fame, and/or showed true promise in some field(s) of magic in his eyes.[1]

These select students were invited to parties (such as the particularly lavish one held on 20 December 1996) where Professor Slughorn would then weed them out further. He was sure to keep in touch with those who "made the cut", even after they had graduated, as they would often provide him with useful information and/or various luxuries.[1]


"Harry, Harry, just the man I was hoping to see! I was hoping to catch you before dinner! What do you say to a spot of supper tonight in my rooms instead? We’re having a little party, just a few rising stars, I’ve got McLaggen coming and Zabini, the charming Melinda Bobbin — I don’t know whether you know her? Her family owns a large chain of apothecaries — and, of course, I hope very much that Miss Granger will favour me by coming too."
— Horace inviting Harry Potter to a Slug Club gathering[src]

Horace Slughorn holds a supper party with the Slug Club

Along the course of the school year, Professor Slughorn would hold various club get-togethers, often dinners with fine food and around 10 student-attendees. Slughorn would lead the conversation in order to get to know the members better and encourage them to associate with one another. For the grander parties he would invite famous former members, such as professional Quidditch player Gwenog Jones.[5]

A Slug Club meeting taking place in the 1940s

Professor Slughorn's aim was to cultivate talent and give his favourites a nudge toward fame and fortune, hoping to reap the benefits of his connection to them once they became the "high fliers" he expected them to be.[6] On the 20th of December, 1996, there was a lavish party for past and present Slug Club members held in Professor Slughorn's office at Hogwarts. It was the only get-together of the club that Harry Potter attended.[7] After Harry's failed attempt to get a particular memory out of the Professor,[8] Slughorn apparently stopped these meetings in order to prevent giving Harry another attempt.

It is unknown what became of the Slug Club when Severus Snape became headmaster during the 1997–1998 school year. It may have been disbanded due to the return of Educational Decree Number Twenty-Four, though the decree technically only affected student-founded clubs (such as Dumbledore's Army). Under the authority of Minerva McGonagall beginning in 1998, it is likely that Professor Slughorn stayed as Potions Master and Head of Slytherin House at Hogwarts. Due to his nature, the Slug Club was likely reinstated (if it was ever disbanded).

Students accepted

Slughorn's first tenure as Potions Master

Wizard(s) Notes
Adrian Class of 1978, became a photographer.[9]
Ambrosius Flume Owner of Honeydukes, sends Slughorn sweets.[1]
Avery Member in the 1940s, part of Tom Riddle's gang and became a Death Eater.[10],[11]
Barnabas Cuffe Editor of the Daily Prophet (as of 1996).[1]
B. C. Mountain climber.[12]
Dahlia F. Unknown[12]
Dirk Cresswell Former Head of the Goblin Liasion Office who had insider information of Gringotts, killed during the Second Wizarding War.[1]
Eldred Worple Writer of Blood Brothers: My Life Amongst the Vampires.[13]
Gwenog Jones Captain of the Holyhead Harpies (as of 1996-97).[1]
Lestrange Member in the 1940s, part of Tom Riddle's gang, became one of the first Death Eaters.[10]
Lily Evans A good student, with particular talent in Potions. Murdered during the First Wizarding War.[1]
Abraxas Malfoy (possibly) An old friend of Slughorn's. Draco used his name in an unsuccessful attempt to gain access to the club.[14]
Lucius Malfoy Of the rich and influential Malfoy family, a Death Eater (until the end of the Second Wizarding War), a respected high-ranking Ministry of Magic official, and for a time a member of the Hogwarts Board of Governors.[15]
Nott (possibly) Theodore Nott's father, who Slughorn inquired about and referred to as an old friend.[2]
Regulus Black Slytherin Seeker, later became a Death Eater (though he betrayed Lord Voldemort by trying to destroy Salazar Slytherin's locket, one of Voldemort's Horcruxes, and was killed in his attempt).[1]
Severus Snape A good student who was brilliant at potions and making new spells. Became a Death Eater, but defected. Succeeded Slughorn in the post of Potions Master at Hogwarts[9]. He was murdered by Tom Riddle in the Second Wizarding War.[13]
Tom Riddle A very promising student with excellent marks, later became known as Lord Voldemort, the most powerful and feared dark wizard of modern times, who was defeated killed at the end of Second Wizarding War by Harry Potter. Slughorn told Tom the details of Horcruxes, which were key in his rise to power.[10]
Unidentified individual Class of 1967, became Minister of Magical Transportation.[9]
Wendy Slinkhard Writer, and kin to Wilbert Slinkhard.[12]

Slughorn's second tenure as Potions Master

Wizard(s) Notes
Blaise Zabini His mother was a beautiful witch who has wedded and been widowed at least seven times, thus inheriting a great deal of wealth from her former husbands.[2]
Cormac McLaggen His uncle Tiberius was well-connected within the Ministry of Magic.[2]
Flora Carrow[16]
Hestia Carrow
Ginny Weasley Caught Professor Slughorn's attention when she cast the seemingly difficult Bat-Bogey Hex on the Hogwarts Express in 1996.[2]
Harry Potter "Boy Who Lived", "Chosen One", son of Lily Evans, who had a particular talent for Defence Against the Dark Arts.[2]
Hermione Granger The best student academically in her year.[5]
Melinda Bobbin Her family owned a large chain of apothecaries.[3]

Students not accepted

These students had been invited to the Slug Club, but Slughorn was no longer interested when he found out they didn't have the favour that he wanted:

  • Marcus Belby – His uncle Damocles invented the Wolfsbane Potion, but Marcus had not spoken to him in a long while as his father and uncle were not on good terms.[2] Belby was nevertheless invited to one of the club's supper meetings, but by the time of the Slug Club Christmas party, Slughorn had Belby passing out towels in the loo.[17]
  • Neville Longbottom – His mother and father (Alice and Frank Longbottom) were once well-known and loved Aurors, but Neville showed none of their talent in this field (presumably his adeptness for Herbology never came up in conversation).[2]
  • Theodore Nott – His father was an old friend of Slughorn's, however after being outed as a Death Eater, Slughorn presumably decided against inviting Nott into the club.[2]


Benefits for Slughorn

Helping others become famous gained him influence (such as being able to recommend the next junior member of the Goblin Liaison Office) and various benefits (such as free tickets to any Holyhead Harpies match or a box of his favourite crystallised pineapple). Horace forechose to obtain things he desired by using his connections to make his life comfortable and cosy, rather than obtain them directly.[1]

Benefits for students

Being in the Slug Club was both an honour and an opportunity due to its exclusiveness, and with Professor Slughorn's connections, they would likely have first-rate careers ahead of them (if they possessed proper talent to begin with).


Although Slughorn had an eye for talents and potential, there were times where such students disappointed him. Slughorn had no desire to affiliate himself with criminals, and as such, when Lucius Malfoy and Nott were caught red-handed as Death Eaters, he severed ties with them and did not invite their respective sons to his gathering.[2] He also thought he could trust Severus Snape,[13] until the latter murdered Albus Dumbledore, which greatly shocked Horace,[18] until Snape's name was cleared a year later.

One of Horace's most disappointing students was Tom Riddle, who did not take up Slughorn's great job offers and instead worked as a shop assistant, and then severing contacts with the professor, thus leaving no benefits for either, much to Slughorn's chagrin.[19] When Riddle resurfaced as the Dark Wizard Lord Voldemort, Slughorn became visibly disturbed, especially when he learned that Voldemort used Slughorn's information to create multiple Horcruxes.[11] So much shame that Horace felt for misjudging Tom that he resigned from his post as professor and modified his memory to give himself a sense of false comfort.[10]

Behind the scenes


The Harry Potter Wiki has 43 images related to Slug Club.

Notes and references

  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Harry Potter and the Half-Blood Prince, Chapter 4 (Horace Slughorn)
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 Harry Potter and the Half-Blood Prince, Chapter 7 (The Slug Club)
  3. 3.0 3.1 Harry Potter and the Half-Blood Prince, Chapter 11 (Hermione's Helping Hand)
  4. Pottermore Presents: Short Stories from Hogwarts of Power, Politics and Pesky Poltergeists, Chapter 3 (Horace Slughorn)
  5. 5.0 5.1 Harry Potter and the Half-Blood Prince, Chapter 14 (Felix Felicis)
  6. Harry Potter and the Half-Blood Prince, Chapter 5 (An Excess of Phlegm)
  7. Harry Potter and the Half-Blood Prince, Chapter 16 (A Very Frosty Christmas)
  8. Harry Potter and the Half-Blood Prince, Chapter 18 (Birthday Surprises)
  9. 9.0 9.1 9.2 Mentioned on the Harry Potter and the Half-Blood Prince script released on the Warner Bros. Awards website
  10. 10.0 10.1 10.2 10.3 Harry Potter and the Half-Blood Prince, Chapter 17 (A Sluggish Memory)
  11. 11.0 11.1 Harry Potter and the Half-Blood Prince, Chapter 23 (Horcruxes)
  12. 12.0 12.1 12.2 Harry Potter and the Half-Blood Prince (film)
  13. 13.0 13.1 13.2 Harry Potter and the Half-Blood Prince, Chapter 15 (The Unbreakable Vow)
  14. Harry Potter and the Half-Blood Prince, Chapter 9 (The Half-Blood Prince)
  15. See this image
  16. 16.0 16.1 New original characters cast for Half-Blood Prince
  17. Harry Potter and the Half-Blood Prince (film) - Chapter 16 (The Unbreakable Vow)
  18. Harry Potter and the Half-Blood Prince, Chapter 29 (The Phoenix Lament)
  19. Harry Potter and the Half-Blood Prince, Chapter 20 (Lord Voldemort's Request)