David Gallagher
Richie Rich
Eugene Levy
Professor Keenbean
Keene Curtis
Herbert Cadbury
Jake Richardson
Reggie Van Dough
Martin Mull
Richard Rich
Lesley Ann Warren
Regina Rich
Richard Fancy
Mr. Van Dough
Marla Maples
Mrs. Van Dough
Michelle Trachtenberg
Gloria
Blake Jeremy Collins
Freckles
Austin Stout
Pee Wee
Kathleen Freeman
Miss Peabody
Richard Riehle
Sgt. Mooney
Don McLeod
Irona/Evil Irona
Rex Smith
Rudy
Christopher Boyer
Hudson
Michael McDonald
Montgomery
Robert Peters
Hungry Officer
Candi Brough
Verva Twin #1
Randi Brough
Verva Twin #2
Billy Burnette
Nigel
Jim Jackman
Shorty
Janet Wood
Bank Teller
Claire Andrew
Baby Ritchie Rich
John Crane
Slim
Robert Hart
Mick
Lacey Taylor Robbins
Caitlin
Lex Robbins
Alex
Alfred Atienza
Cappy
Cody Weselis
Billy
Steven Cragg
Jeeves
Amy Kidd
Cynthia
Julianna Lavin
Sitcom Mom
Michael Bonnabel
Sitcom Dad
Sue Ellen Enright
TV Reporter
Ken Hanes
Anchorman
Tawny Fere
Neighbor
Jennifer Joyce
Servant
Rick Dean
Smark Bystander
Ken Odom
Angry Bystander
Preston Ahearn
Dismayed Bystander
Sharon Meyers
Pretty Bystander
Manny Fernandez
Salvation Army Guy
Manny Fernandez
Fast Shopper
Jennifer Shami
Slow Shopper
Larry Robbins
Jolly Santa
Patricia Elliott
Hazel
Tommy Woods
Smart Kid
Jotona Deason
Happy Kid
Nezben Deason
Good Looking Kid
Dan Fisher
Chief Officer
Joe Torrenueva
Prison Guard
Chrystina Myers
Driver
Shorty
Dollar
Rachel Duhame
Kid Near Car Hit (uncredited)
Phil Hawn
Neighbor (uncredited)
Carlton Preston
Bulter (uncredited)
Mary Ann Schmidt
Lab Scientist (uncredited)