I Yabba-Dabba Do!

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

Janet Waldo

John Stephenson

Mr. Slate

Kip King

Additional Voices (voice)

Ronnie Schell

Joseph Barbera

Michael Bell

Charlie Brill

Greg Burson

Randy Crenshaw

Ruth Buzzi

Joan Gerber

Pat Harrington Jr.

Nick Jameson

Brian Stokes Mitchell

Don Messick

Henry Polic II

Howard Morris

Don Reed

Darryl Phinnessee

Alan Oppenheimer

Rich Fogel

Mark Seidenberg

John Debney

Pat Foley

Gil Iverson

Tim Iverson

Cosmo Anzilotti

Mark Young

Joseph Barbera

Iwao Takamoto