Cast & crew
The Locked Heart (1918)
Directed by Henry King
Cast
| Vola Vale | Mason |
| Daniel Gilfether | Mason |
| Leon Pardue | Flamethrower Villain |
| Henry King | Mason |
| Gloria Joy | Mason |
Crew
| George Rizard | Director of Photography |
| Daniel F. Whitcomb | Scenario Writer |
| Henry King | Director |
| E.D. Horkheimer | Producer |
| H.M. Horkheimer | Producer |