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Jack Mercer as Professor Grampy (voice) (uncredited) |
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Mae Questel as Orphans (voice) (uncredited) |
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Everett Clark as Grampy (voice) (uncredited) |
| Visual Effects | Seymour Kneitel | Animation Director |
| Directing | Dave Fleischer | Director |
| Production | Max Fleischer | Producer |
| Sound | Bob Rothberg | Original Music Composer |
| Sound | Tot Seymour | Original Music Composer |
| Sound | Sammy Timberg | Original Music Composer |
| Writing | Bob Rothberg | Lyricist |
| Writing | Sammy Timberg | Lyricist |
| Writing | Tot Seymour | Lyricist |
| Visual Effects | William Henning | Animation |
