Hermione: "I’d thought he’d annoy Ron most. I debated for a while about Zacharias Smith, but I thought, on the whole-"
Harry: "You considered Smith?"
Hermione: "Yes, I did, and I’m starting to wish I’d chosen him, McLaggen makes Grawp look a gentleman."
— Hermione speaking to Harry and Luna at the Christmas Party[src]

Cormac McLaggen was a Gryffindor student who left Hogwarts School of Witchcraft and Wizardry in 1997. He was a reserve Keeper on his house Quidditch team in his seventh year, and largely to blame for its embarrassing loss to Hufflepuff that year.


Ron cormac

McLaggen and Ron Weasley

In his sixth year at Hogwarts, McLaggen ate a pound of poisonous Doxy eggs on a bet to prove his bravery. This foolhardy decision kept him from joining the Gryffindor Quidditch team, something he cared a great deal about. With Oliver Wood's graduation at the end of the 1993-1994 school year and the Triwizard Tournament canceling all Quidditch matches the following year, the Gryffindor team was in need of a Keeper at the beginning of the 1995-1996 school year. Unfortunately for McLaggen, he was in the hospital wing being treated for doxy egg poisoning at the time of tryouts and Ron Weasley was made Keeper instead.

The following year, McLaggen's last, he tried out for the team, but Ron beat him in saves. This may have been because Hermione Granger, who overheard McLaggen made rude remarks about Ron and Ginny Weasley, placed a Confundus Charm on him.

Mclaggen try outs

Cormac McLaggen in the Keeper tryouts

When Ron was hospitalized before Gryffindor's second game against Hufflepuff, Harry Potter was forced to play McLaggen as his reserve keeper. In the week leading up to the match Harry had his doubts about his new Keeper, as McLaggen was bossy and a know-it-all who Harry couldn't wait to be rid of. The match was a no-holds-barred disaster, as McLaggen spent more time trying to tell the rest of the team how to play rather than watching the rings, resulting in several goals for the opponent. This culminated in him wrestling a Beater's bat away from Jimmy Peakes and attempting to show him how to hit a Bludger, only to knock Harry off his broomstick and crack his skull. The fiasco was possibly Gryffindor's worst and most embarassing loss ever and Ron told Harry in the hospital wing that he thought "the rest of the team might've dealt with him before you get out of here, they're not happy..."

McLaggen was also a member of the Slug Club in his seventh year, as his uncle Tiberius is well-connected at the Ministry of Magic. He attended Horace Slughorn's Christmas party with Hermione Granger, another club member. However, Hermione only asked him to go in an attempt to make Ron Weasley jealous and to retaliate for his relationship with Lavender Brown. McLaggen ended up driving her crazy by talking about himself excessively and being too forward romantically. She avoided him for most of the night to talk to Harry and Luna Lovegood. When Ron asked Harry about the pair, he was "slightly more cheerful" to learn that the date did not go well.

Personality and Traits

"I’ve just escaped – I mean, I’ve just left Cormac. Under the mistletoe... Cormac hasn’t asked me one single question about myself, no, I’ve just been treated to ‘A Hundred Great Saves Made by Cormac McLaggen’ non-stop ever since – oh no, here he comes!"
Hermione Granger to Harry Potter on attending the Christmas Party with McLaggen[src]

Arrogant and self-assured, McLaggen illustrates the most negative aspects of the stereotypic Gryffindor characteristics. Though brave, he is more foolhardy than self-sacrificing, and he engaged in childish pranks, such as eating a pound of poisonous Doxy eggs on a bet. He is also arrogant and pushy, as illustrated by his trying to tell the other players on the Quidditch team how to play and spending most of his date with Hermione Granger boasting about himself. He is also too aggressive romantically, according to Hermione, and lacks manners and consideration.


  • The name Cormac is borne by a number of figures from Irish legend and history, including Cormac mac Airt, a warrior king of Ireland, and Cormac Cond Longas, an exiled prince of Ulster. The name can be translated into "raven"; these birds are strongly associated with warfare in Celtic mythology. This may allude to McLaggen's aggressive personality.

Behind the scenes


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