Cast of Problem Child

John Ritter plays Ben, the kind-hearted but naive father who adopts Junior.

Jack Warden portrays Big Ben, the cantankerous father figure in Junior's life.

Michael J. Oliver is Junior, the mischievous and disruptive character around whom the movie revolves.

Gilbert Gottfried brings Mr. Peabody to life, a school principal dealing with Junior's antics.

Amy Yasbeck plays Flo, Ben's love interest who tries to bond with Junior.

Michael Richards portrays Martin Beck, Junior's well-meaning but bumbling counselor.

Peter Jurasik is Roy, a character involved in Junior's disruptive schemes.

Charlotte Akin is Lorraine, a character who interacts with Junior and his shenanigans.

Anna Marie Allred plays Kid #3, a minor character in the movie.

Adam Anderly is Catcher, another minor character within the storyline.

Robert A. Anderson plays Boy in Chair, a character with a small role in the film.

Cody Beard appears as 2nd Baseman, a character within one of Junior's humorous episodes.