Directed by
| Lucien Hubbard | ||
| Benjamin Christensen | ... | (uncredited) |
| Maurice Tourneur | ... | (uncredited) |
Writing Credits
| Jules Verne | ... | (novel) |
| Lucien Hubbard | ... | (screenplay) |
Cast (in credits order) verified as complete
| Lionel Barrymore | ... | Count Andre Dakkar | |
| Jacqueline Gadsdon | ... | Countess Sonia Dakkar (as Jane Daly) | |
| Lloyd Hughes | ... | Nikolai Roget | |
| Montagu Love | ... | Baron Falon | |
| Harry Gribbon | ... | Mikhail | |
| Snitz Edwards | ... | Anton | |
| Gibson Gowland | ... | Dmitry | |
 |
Dolores Brinkman | ... | Teresa |
| Karl Dane | ... | Crewman (scenes deleted) | |
| Rest of cast listed alphabetically: | |||
| Edward Connelly | ... | Radio Technician (uncredited) | |
| Robert Dudley | ... | Workman (uncredited) | |
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Sydney Jarvis | ... | Cossack (uncredited) |
| Bob Kortman | ... | Island Stronghold Guard (uncredited) | |
| Robert McKim | ... | Captain of the Guard (uncredited) | |
| Angelo Rossitto | ... | Underwater Creature (uncredited) | |
| Carl 'Major' Roup | ... | Underwater Creature (uncredited) | |
|
|
Sam Savitsky | ... | Crewman (uncredited) |
|
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Billy Schuler | ... | Undetermined Secondary Role (uncredited) |
| Evelyn Selbie | ... | Faithful Servant (uncredited) | |
|
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Jack Stoutenburg | ... | Undetermined Secondary Role (uncredited) |
| Harry Tenbrook | ... | Radio Technician (uncredited) | |
Produced by
| J. Ernest Williamson | ... | producer (uncredited) |
Music by
| Martin Broones | ||
| Arthur Lange | ||
| William Axt | ... | (uncredited) |
| Paul Lamkoff | ... | (uncredited) |
Cinematography by
| Percy Hilburn | ... | (photographed by) |
Editing by
| Carl Pierson | ... | film editor (as Carl L. Pierson) |
Art Direction by
| Cedric Gibbons | ||
Sound Department
| Douglas Shearer | ... | recording engineer |
| Jack Jordan | ... | sound engineer (uncredited) |
Special Effects by
| James Basevi | ... | technical effects |
| Irving G. Ries | ... | technical effects |
| Louis H. Tolhurst | ... | technical effects |
| J. Ernest Williamson | ... | special effects (uncredited) |
Stunts
| Waldo | ... | stunts: high dive (uncredited) |
Camera and Electrical Department
| George M. Williamson | ... | underwater photographer (uncredited) |
| J. Ernest Williamson | ... | underwater photographer (uncredited) |
