Donnie Darko
Eddie Darko
Elizabeth Darko
Samantha Darko
Rose Darko
Frank
Dr. Fisher
Jim Cunningham
Police Officer
Bob Garland
Man in Red Jogging Suit
Joanie James
Cherita Chen
Ronald Fisher
Sean Smith
Seth Devlin
Kitty Farmer
Gretchen Ross
Ricky Danforth
Principal Cole
Prof. Kenneth Monnitoff
Karen Pomeroy
Susie Bates
Emily Bates (as Marina Malota)
Suzy Bailey
Beth Farmer
Roberta Sparrow / Grandma Death
Dr. Lilian Thurman
Linda Connie
Shanda Riesman
Larry Riesman
Leroy
Anne Fisher
Kim, Dorky Girl
Dorky Half-Sister
Lanky Kid
Mystery Woman
Friend
Passenger
David
Self (archive footage) (uncredited)
Vice Principal (uncredited)
Teacher (uncredited)
Flight Attendant (uncredited)
Airline Passenger (uncredited)
Student (uncredited)
Concerned Mother (uncredited)
Movie Ticket Salesman (uncredited)