The Brainiacs.com Online

Michael Angarano - Matt Tyler, Kevin Kilner - David Tyler, Kevin Jamal Woods - Danny, Vanessa Zima - Kelly Tyler, Bianca Rossini - Ms. Arbitrage, David Bickford - Walter, Allen Lulu - Miles (as Alan Lulu) , Florence Stanley - Grandma Tyler, Patrick Thomas O'Brien - Mr. Greenmail (as Patrick T. O'Brien) , Kurt Wetherill - Chet Lucre, Cody Wetherill - Russell Lucre, Robert Grovich - Lars, Alexandra Paul - Kara Banks, Dom DeLuise - Ivan Lucre (as Dom Deluise) , Gregg Berger - Mr. Toller