 | Henry Corden als Fred Flintstone / Monkey #2 / Turtle #2 (voice) |
 | Mel Blanc als Barney Rubble (voice) |
 | Jean Vander Pyl als Wilma Flintstone / Pebbles Flintstone / Elephant (voice) |
 | Gay Autterson als Betty Rubble / Nurse / Turtle #1 (voice) |
 | John Stephenson als Frank Frankenstone / Dinosaur / Monkey #1 (voice) |
 | Don Messick als Doctor / Fish #1 / Fish #2 / Parrot / Pigasaurus (voice) |
| Ray Patterson | Director |
| Oscar Dufau | Director |
| William Hanna | Executive Producer |
| Bob Ogle | Writer |
| Margaret Loesch | Supervising Producer |
| Alex Lovy | Producer |
| Joseph Barbera | Executive Producer |