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Walt Disney as Mickey Mouse (voice) (uncredited) |
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Pinto Colvig as Pluto (voice) (uncredited) |
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Billy Bletcher as Dr. XXX (voice) (uncredited) |
| Production | Walt Disney | Producer |
| Directing | David Hand | Director |
| Sound | Bert Lewis | Original Music Composer |
| Visual Effects | Art Babbitt | Animation |
| Visual Effects | Tom Palmer | Animation |
| Visual Effects | Les Clark | Animation |
| Visual Effects | Hardie Gramatky | Animation |
| Visual Effects | Ben Sharpsteen | Animation |
| Visual Effects | Jack King | Animation |
| Production | Joseph M. Schenck | Producer |
| Visual Effects | Johnny Cannon | Animation |
| Writing | David Hand | Writer |
| Camera | David Hand | Director of Photography |
