McLaggen

He was a member of the Dueling Club. Tube to be, because Harry confronted him, when he won a  Kouta to get the cup of Mourning, in 1996 - 1997. Possibly Cormac McLaggen.

Behind the scenes

 * This particular student was only featured in the Nintendo DS version of Harry Potter and the Half-Blood Prince (video game)

Appearances

 * Harry Potter and the Philosopher's Stone (possibly)
 * Harry Potter and the Half-Blood Prince (video game)