 | Tom Kennedy als Tom |
 | Monte Collins als Monte |
 | Phyllis Crane als Miss Millstone (uncredited) |
| Val Duran als Dr. Wong (uncredited) |
| Eddie Lee als Chinese Henchman (uncredited) |
 | James B. Leong als Chinese Man (uncredited) |
 | Jack 'Tiny' Lipson als The Monster (uncredited) |
 | Wilfred Lucas als Professor Edwin Millstone (uncredited) |
| Sam Lufkin als Cop (uncredited) |
 | Harry Semels als Dr. Wong (uncredited) |
 | Blackie Whiteford als 1st Bank Robber (uncredited) |
| Beal Wong als Chinese Henchman (uncredited) |
| Monte Collins | Story |
| Jack Leonard | Story |
| Jack White | Screenplay |
| Jules White | Associate Producer |
| Del Lord | Director |
| Charles Hochberg | Editor |
| Harry McCoy | Screenplay |
| Benjamin H. Kline | Director of Photography |
