Richie Rich

David Gallagher

Mr. Rich

Martin Mull

Professor Keanbean

Eugene Levy

Mrs. Rich

Lesley Ann Warren

Herbert Cadbury

Keene Curtis

Reggie Van Dough

Jake Richardson

Mr. Van Dough

Richard Fancy

Mrs. Van Dough

Marla Maples

Mrs. Peabody

Kathleen Freeman

Gloria

Michelle Trachtenberg

Freckles

Blake Jeremy Collins

Irona/Evil Irona

Don McLeod

Pee Wee

Austin Stout

Sergeant Mooney

Richard Riehle

Rudy

Rex Smith

Hudson

Christopher Boyer

Montgomery

Michael McDonald

Hungry Officer

Robert Peters

Verva Twin #1

Candi Brough

Verva Twin #2

Randi Brough

Nigel

Billy Burnette

Shorty

Jim Jackman

Bank Teller

Janet Wood

Baby Ritchie Rich

Claire Andrew

Billy

Cody Weselis

Cynthia

Amy Kidd

Sitcom Mom

Julianna Lavin

Sitcom Dad

Michael Bonnabel

TV Reporter

Sue Ellen Enright

Anchorman

Ken Hanes

Neighbor

Tawny Fere

Angry Bystander

Ken Odom

Salvation Army Guy

Manny Fernandez

Jolly Santa

Larry Robbins

Hazel

Patricia Elliott

Prison Guard

Joe Torrenueva

Neighbor (uncredited)

Phil Hawn

Lab Scientist (uncredited)

Mary Ann Schmidt