Directed by
| Joseph Barbera | ||
| William Hanna | ||
Writing Credits
| Michael Maltese | ... | (written by) (as Mike Maltese) |
Cast (in credits order) complete, awaiting verification
 |
Doug Young | ... | Twister (voice) |
| Hal Smith | ... | Bronco (voice) | |
| Daws Butler | ... | Loopy De Loop (voice) | |
Produced by
| Joseph Barbera | ... | producer |
| William Hanna | ... | producer |
Editing by
| Warner E. Leighton | ... | (as Warner Leighton) |
Production Management
| Howard Hanson | ... | production supervisor |
Animation Department
| Robert Gentle | ... | background artist |
| Charles Nichols | ... | animation director (as Charles A. Nichols) |
| Don Patterson | ... | animator |
| Bill Perez | ... | layout artist |
Music Department
| Hoyt Curtin | ... | musical director |
Additional Crew
| Paul Sommer | ... | story director |
