Directed by
| Joseph Barbera | ||
| William Hanna | ||
Writing Credits
| Michael Maltese | ... | (written by) |
Cast (in credits order) complete, awaiting verification
| Daws Butler | ... | Loopy De Loop (voice) | |
 |
Don Messick | ... | Musketeers / Duke (voice) |
| Jean Vander Pyl | ... | Princess (voice) | |
Produced by
| Joseph Barbera | ... | producer |
| William Hanna | ... | producer |
Editing by
| Greg Watson | ||
Production Management
| Howard Hanson | ... | production supervisor |
Animation Department
| Art Lozzi | ... | background artist |
| Charles Nichols | ... | animation director |
| Jack Ozark | ... | animator |
| Iwao Takamoto | ... | layout artist |
Music Department
| Hoyt Curtin | ... | musical director |
Additional Crew
| Lawrence Goble | ... | titles |
| Lewis Marshall | ... | story director |
