Movie: I Yabba Dabba Do!
Top 10 Billed Cast
Frank Welker
Barney Rubble
Henry Corden
Fred Flintstone
B.J. Ward
Betty
Jean Vander Pyl
Wilma / Mrs. Slate
Megan Mullally
Pebbles
Jerry Houser
Bamm-Bamm
June Foray
Various voices
William Hanna
William
John Stephenson
Mr. Slate
Kip King
Additional Voices (voice)
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