| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bernard W. Burton | Crew | Editing | Editor |
 C. Bakaleinikoff | Crew | Sound | Music Arranger |
Carl Himm | Crew | Editing | Editor |
 Clyde Bruckman | Crew | Directing | Director, Story |
Felix Adler | Crew | Writing | Story |
 Gaylord Lloyd | Crew | Directing | Assistant Director |
George D. Ellis | Crew | Sound | Sound |
 Harold Lloyd | Crew | Writing | Writer, Producer |
James H. Anderson | Crew | Production | Production Assistant |
John L. Murphy | Crew | Production | Production Manager |
Liell K. Vedder | Crew | Art | Art Direction |
Lodge Cunningham | Crew | Sound | Sound |
 Malcolm St. Clair | Crew | Directing | Director |
Paul Gerard Smith | Crew | Writing | Dialogue |
Walter Lundin | Crew | Camera | Director of Photography |
Henry N. Kohler | Crew | Camera | Director of Photography |
 Barbara Kent | Cast | Actress | Billie Lee |
 Blue Washington | Cast | Actor | Thorne's Henchman (uncredited) |
 Brooks Benedict | Cast | Actor | Handcuffed Prisoner at Police Station (uncredited) |
 Charles Middleton | Cast | Actor | John Thorne / The Dragon |
Douglas Haig | Cast | Actor | Buddy Lee (uncredited) |
 Eddy Chandler | Cast | Actor | Cop (uncredited) |
 Edgar Kennedy | Cast | Actor | SFPD Desk Sergeant (uncredited) |
 Grady Sutton | Cast | Actor | Man at Party (silent version) (scenes deleted) |
Harold Lloyd | Cast | Actor | Harold Bledsoe |
 James B. Leong | Cast | Actor | Florist Henchman / High Priest (uncredited) |
James Wang | Cast | Actor | Dr. Chang Gow (uncredited) |
 James Pier Mason | Cast | Actor | Barry Steele / Dick the Dude (uncredited) |
 Leo Willis | Cast | Actor | Cop (uncredited) |
 Nelson McDowell | Cast | Actor | 1st Train Passenger (uncredited) |
 Noah Young | Cast | Actor | Patrick Clancy SFPD |
Rae Daggett | Cast | Actress | Woman Sitting in Police Station (uncredited) |
 Tetsu Komai | Cast | Actor | Florist Henchman (uncredited) |
 Will Walling | Cast | Actor | Captain Walton, SFPD 3rd Div. |
| Person | Type | Job | Role(s) |
