Joseph Barbera Director, Producer William Hanna Director, Producer Mel Blanc Barney Rubble , Dino Voice June Foray Tanya Malichite Voice Paul Frees Rock Slag , Green Goose , Triple X Voice Gerry Johnson Betty Rubble Voice Harvey Korman Chief Mountmore , Additional Voices Voice Don Messick Voice Alan Reed Fred Flintstone Voice John Stephenson Vet Voice Jean Vander Pyl Wilma Flintstone Voice Janet Waldo Voice Harvey Bullock Screenwriter R. S. Allen Screenwriter Larry C. Cowan Film Editing Milton Krear Film Editing Marty Paich Original Music Bill Perez Art Director