Cast & crew
Gym Jam (1950)
Directed by Izzy Sparber Written by Carl Meyer, Jack Mercer
Cast
| Jack Mercer | Popeye |
| Mae Questel | (uncredited) |
| Jackson Beck | Bluto |
Crew
| Thomas Johnson | Animation |
| Izzy Sparber | Director |
| John Gentilella | Animation |
| Anton Loeb | Scenic Artist |
| Winston Sharples | Music |
| Carl Meyer | Story |
| Jack Mercer | Story |