Frank Welker

as Barney Rubble (voice)

Henry Corden

as Fred Flintstone (voice)

B.J. Ward

as Betty (voice)

Jean Vander Pyl

as Wilma / Mrs. Slate (voice)

Megan Mullally

as Pebbles (voice)

Jerry Houser

as Bamm-Bamm (voice)

June Foray

as Various voices (voice)