I Yabba-Dabba Do!
Cast
John Stephenson
Mr. Slate (voice)
Don Messick
(voice)
Russi Taylor
(voice)
Frank Welker
Barney Rubble (voice)
Henry Corden
Fred Flintstone (voice)
B.J. Ward
Betty (voice)
Megan Mullally
Pebbles (voice)
Jerry Houser
Bamm-Bamm (voice)
William Hanna
Bill (voice)
Roger Rose
Additional Voices (voice)
Jean Vander Pyl
Wilma / Mrs. Slate (voice)
June Foray
Various voices (voice)
Joseph Barbera
Joe (voice)