"Ben Healy and his social climbing wife Flo adopt fun-loving seven year old Junior. But they soon discover he's a little monster as he turns a camping trip, a birthday party and even a baseball game into comic nightmares."
John Ritter
as Ben
Jack Warden
as Big Ben
Michael J. Oliver
as Junior
Gilbert Gottfried
as Mr. Peabody
Amy Yasbeck
as Flo
Michael Richards
as Martin Beck
Peter Jurasik
as Roy
Charlotte Akin
as Lorraine
Anna Marie Allred
as Kid #3
Adam Anderly
as Catcher
Robert A. Anderson
as Boy in Chair
Cody Beard
as 2nd Baseman
Jordan Burton
as Kid #1
Eli Cummins
as Umpire
John S. Davies
as Paramedic
Vince Davis
as Clown
Dennis Dugan
as All American Dad
Justin Elledge
as Freddy
Eric Elterman
as All American Boy
Ward Emling
as Mr. Henderson
John William Galt
as Warden
Corki Grazer
as Sister Mary
Vernon Grote
as Guard #2
Garland Hampton
as Serious Boy
Helena Humann
as Mother Superior
Philip Jhin
as Mr. Yangita
Judy Jones
as Anchorperson
Melody Jones
as Sister Abigail
Danny Kamekona
as Mr. Hirohito
Ehchi Edward Kawanabe
as Mr. Mitsui
Colby Kline
as Lucy
Joseph Kolb
as Kid #5
Hugh Lampman
as Master of Ceremonies
Ellen Locy
as Nun #2
Kristen Lowman
as Mrs. Henderson
Joshua Martin
as Shortstop
Melissa Reneé Martin
as Friend #2
Julie Mayfield
as Harriet
Andrea McCall
as Rich Lady
Willie Minor
as Guard #1
Ron Miranda
as Juan
Shepler Mobley
as Friendly Woman
S. 'Monty' Moncibais
as Prisoner
Norma Moore
as Sister Samantha
Abby Newman
as Friend #1
John O'Connell
as Psychiatrist
Kristy Lynne Patrick
as Kid #2
Eric Poppick
as Dr. Strauss
John Rainone
as Circus Clown
Martin Rayner
as Ringmaster
Dennis Redfield
as Cameraman
Symone Redwine
as Friend #3
Lico Reyes
as Pedro
Florence Schauffler
as Mrs. Perkins
Shaun Shimoda
as Kinjo Hirohito
Garry Smith
as Angry Little Person
Josh Stoppelwerth
as Kid #4
Al Trejo
as Police Officer #1
Alex Utroska
as Kid in Dugout
Kerry Von Erich
as Neo Nazi
Jack Willis
as Regular Joe
Ed Yeager
as Jim O'Conner
Jessica Zucha
as Serious Girl
John Achorn
as Additional Voice (voice)
Lee Arnone
Catherine Battistone
Rina Bennett
Bob Bergen
Deem Bristow
Agim Coma
Maggie Dawson
Claudette Duffy
Phillip Glasser
Kenneth Hartman
Endre Hules
Richard Kline
Amy Levy
Marilyn Madderom
Humberto Ortiz
Anthony Tyler Quinn
LaGloria Scott
Burton Sharp
Laura Summer
as Additional Voices (voice)
Dan Woren
Debbie Adkins
as Store Shopper (uncredited)
Joan Arenstein
as Cafeteria Nun (uncredited)
James Field
as Police Officer #2 (uncredited)
Derek A. Jones
as Man in Store (uncredited)
Don Kruizinga
as Police Officer #3 (uncredited)
Renay Morgan
as Nun (uncredited)
Kyle Pittman
as Kid (Uncredited)
Jamie Day Price-Young
as Kid at Carnival (uncredited)
Summer Selby
as Parent at Party (uncredited)
Peter Lyons Collister
Director of Photography
Robert Simonds
Producer
Larry Karaszewski
Screenplay
Tom Finan
Editor
Scott Alexander
Miles Goodman
Original Music Composer
Director
Matt McColm
Stunts
Valerie McCaffrey
Casting
George Costello
Production Design
Nancy Nayor
Mike Hill
Daniel P. Hanley
Eileen Kennedy
Costume Design
Mike Bingham
Art Direction
Nelson Coates
Denise Pizzini
Set Decoration
Nena Smarz
Makeup Artist
Tim Gilbert
Gene LeBell
Christine Anne Baur
Jack Bennett
Special Effects Coordinator
Mike Milliken
Color Timer
John Patrick Smith
First Assistant Camera
Steve Olson
Sound Editor
Robert Miller
Gary Davis
Gary Jensen
Margaret Johnson
Utility Stunts
Michael Fisher
Carpenter
Assistant Art Director
Lance Gilbert
David McGill
Second Assistant Camera
Mark Gordon
Location Manager
Tom Morga
George Doering
Musician
Ralph Watson
Steadicam Operator
Joe Finnegan
Carl D. Stitt
Best Boy Grip
James Thatcher
Dialogue Coach
Mickey Gilbert
Jamie Bunch Elliott
Second Unit Director
Allan Bromberg
Stunt Coordinator
Camera Operator
Joel Moss
Scoring Mixer