Trailer
Images
 | Frank Buck as Frank Hardy |
 | Sasha Siemel as Tiger Van Dorn |
 | Reginald Denny as Ralph Marshall |
 | Esther Ralston as Valerie Shields |
 | Charlotte Henry as Dorothy Elliott |
 | William Bakewell as Tom Banning |
 | Clarence Muse as Lightning |
 | Willie Fung as Chiang-Houseboy |
 | LeRoy Mason as Jim Murphy |
 | Matthew Betz as Inspector Starrett |
 | Richard Tucker as Robert Banning |
 | Duncan Renaldo as Armand Roget |
 | Fred Kohler Jr. as John Charles |
 | Sherwood Bailey as Paul Marshall |
 | Harry 'Snub' Pollard as Campbell |
 | George Rosener as Professor |
 | Gertrude Sutton as Mrs. Maitland |
 | John St. Polis as Chandler Elliott |
 | John Davidson as Doctor Coleman |
 | Milburn Morante as Singapore Joe |
| Dirk Thane as Joe Nolan |
 | Robert Warwick as Angus MacLeod |
| Dahlam Ali as Hardy's Assistant |
 | Jim Corey as Henchman |
 | Paul Ellis as Greenway |
| Henry Hale as Jackson |
 | Harry Harvey as Roget Clerk #1 |
| Reed Howes as Sailor |
 | Jack Ingram as Undercover Detective at Dive |
 | Tom London as Detective Interrogating Pete |
| Merrill McCormick as Peters |
 | Blackie Whiteford as Henchman |
 | Roger Williams as Henchman |
| Directing | |
| Harry L. Fraser | Director |
| George Melford | Director |
Writing | |
| George M. Merrick | Screenplay |
| Sherman L. Lowe | Screenplay |
| Harry O. Hoyt | Screenplay |
| George Melford | Screenplay |
| George Rosener | Screenplay |
| Arthur Hoerl | Screenplay |
| Dallas M. Fitzgerald | Screenplay |
| Gordon Griffith | Screenplay |
Production | |
| Louis Weiss | Producer |
Editing | |
| Earl Turner | Editor |
Crew | |
| George Magrill | Stunts |
| Carl Mathews | Stunts |
| Eddie Parker | Stunts |
Camera | |
| Edward Linden | Director of Photography |
| Herman Schopp | Director of Photography |
Sound | |
| Corson Jowett | Sound |
| T.T. Triplett | Sound |
| Lee Zahler | Original Music Composer |
