| Name | Character | Episodes |
|---|---|---|
| Frank Welker | The Claw | 31 |
| Lennie Weinrib | Curly Boondock | 31 |
| John Stephenson | 31 | |
| Daws Butler | Big Duke | 31 |
| Alan Oppenheimer | 31 | |
| Bob Holt | 31 | |
| Ed Peck | Burly Boondock | 31 |
| Joe E. Ross | Sergeant Flint (voice) | 31 |
| Janet Waldo | 31 | |
| Hal Smith | 31 | |
| Scatman Crothers | Hong Kong Phooey (voice) | 31 |
| Fran Ryan | 31 | |
| Allan Melvin | 31 | |
| Paul Winchell | Mr. Shrink | 31 |
| Don Messick | Spot | 31 |
| Peter Leeds | 31 | |
| Casey Kasem | 31 | |
| Jean Vander Pyl | Rosemary (voice) | 4 |
| Jean Vander Pyl | 0 |