Cast & crew
Wacky Races (1968)
Cast
| John Stephenson | Blubber Bear (voice) |
| Paul Winchell | Clyde (voice) |
| Don Messick | Gravel Slag (voice) |
| Daws Butler | Big Gruesome (voice) |
| Janet Waldo | Penelope Pitstop (voice) |
| Dave Willock | Narrator (voice) |
Crew
| Joseph Barbera | Producer |
| William Hanna | Producer |