Derek Richardson
Harry Dunne
Eric Christian Olsen
Lloyd Christmas
Eugene Levy
Principal Collins
Michelle Krusiec
Ching Chong
Jeff Cesario
P.A. Announcer
Wayne Federman
Officer Dave
Lucas Gregory
8-year-old Harry
Holly Towne
Preppy Student
Vahe Manoukian
Security Guard
Carl Mazzocone
Football Coach
Nancy M. Pimental
Museum Director
Roger Eschbacher
Superintendent Zimmer
Colin Ford
Lloyd (at age 5) (uncredited)
Aaron Kaplan
10-year-old Kid