"The Pebbles and Bamm-Bamm Show" 1971

The Pebbles and Bamm-Bamm Show is a 30-minute Saturday morning animated series spin-off of The Flintstones produced by Hanna-Barbera Productions, which ran for 16 half-hour episodes from September 11, 1971, to September 2, 1972, and four 8-minute episodes from September 9, 1972, to September 1, 1973, on CBS.

Cast:

Sally Struthers
Pebbles Flinstone 

Jay North
Bamm-Bamm Rubble 

Mitzi McCall
Penny 

Gay Autterson
Wiggy / Cindy / Betty Rubble 

Lennie Weinrib
Moonrock 

Don Messick
Bad Luck Schleprock