Harry: Vada Sultenfuss from My Girl

Ron: Kat Stratford from 10 Things I Hate About You

Fred: Cher Horowitz from Clueless

George: Laney Boggs from She's All That

Neville: Tatum Riley from Scream

Draco: Kathryn Merteuil from Cruel Intentions

Seamus: Buffy Summers from Buffy the Vampire Slayer (1992)