A criminal on the run hides in a circus and seeks to possess the daughter of the ringmaster at any cost.
You can now watch The Unknown online on the following streaming providers in the United States.
| Directing | Tod Browning | Director |
| Writing | Mary Roberts Rinehart | Novel |
| Camera | Merritt B. Gerstad | Director of Photography |
| Editing | Harry Reynolds | Editor |
| Editing | Errol Taggart | Editor |
| Crew | Joseph Farnham | Title Graphics |
| Writing | Waldemar Young | Screenplay |
| Writing | Joseph Farnham | Writer |
| Art | Cedric Gibbons | Art Direction |
| Art | Richard Day | Art Direction |
| Costume & Make-Up | Lucia Coulter | Costume Design |
| Production | Irving Thalberg | Producer |
| Writing | Tod Browning | Story |
| Directing | Harry Sharrock | Assistant Director |
| Crew | Paul Desmuke | Stunt Double |
| Camera | Clarence Sinclair Bull | Still Photographer |
| Costume & Make-Up | Lucia Coulter | Wardrobe Supervisor |
| Sound | Jack Feinberg | Musician |
| Sound | Sam Feinberg | Musician |
