Wilma Flintstone gets a shot at playing big-league baseball when the Bedrock Dodgers recruit her as a pitcher.
- Gay Autterson as Betty Rubble
- Joe Baker as Mean and Checker
- Mel Blanc as Barney Rubble and Dino
- Henry Corden as Fred Flintstone
- Jim MacGeorge as Stub
- Julie McWhirter Dees as La Shale and Rocky
- Don Messick as the announcer
- John Stephenson as Frank Frankenstone
- Jean Vander Pyl as Wilma Flintstone and Pebbles Flintstone
- Frank Welker as Creeply and Finrock
- Paul Winchell as the umpire
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