Directed by
| Joseph Barbera | ||
| William Hanna | ||
Writing Credits
| Michael Maltese | ... | (written by) |
Cast
| Daws Butler | ... | Loopy De Loop / 2nd Bird / Giant (voice) | |
 |
Don Messick | ... | 1st Bird / Jack / Chick (voice) |
| Jean Vander Pyl | ... | Jack's Mother / Mama Chicken / Harp / Giant's Wife (voice) | |
Produced by
| Joseph Barbera | ... | producer |
| William Hanna | ... | producer |
Editing by
| Joe Ruby | ... | (as Joseph Ruby) |
Production Management
| Howard Hanson | ... | production supervisor |
Animation Department
| Robert Bentley | ... | animator |
| Vera Ohman | ... | background artist |
| Paul Sommer | ... | layout artist |
Music Department
| Hoyt Curtin | ... | musical director |
| John Seely | ... | music supervisor |
Additional Crew
| Lawrence Goble | ... | titles |
| Alex Lovy | ... | story director |
