Cast & crew
Seas Beneath (1931)
Directed by John Ford Written by Dudley Nichols
Cast
| Marion Lessing | Steuben |
| Warren Hymer | Lug |
| John Loder | Franz Kemmerich |
| Jack Martin | (uncredited) |
| Curt Furberg | (uncredited) |
| Leonard Davison | (uncredited) |
| George O'Brien | Kingsley Shacklebolt |
| Mona Maris | Fraulein |
| Al Bennett | (uncredited) |
| Edward Peil Jr. | (uncredited) |
| Bill Brande | (uncredited) |
| Bob Kyle | (uncredited) |
| Philip Ahlm | Petty |
| Harry Mount | Bugler |
| Bob Nelson | (uncredited) |
| Maurice Murphy | Merkel |
| Hans Fuerberg | (uncredited) |
| Terrance Ray | Skits |
| Al Generaux | (uncredited) |
| Henry Victor | Steuben |
| Bob Gillette | (uncredited) |
| Harry Weil | (uncredited) |
| Larry Kent | McGregor |
| Nat Pendleton | (uncredited) |
| Hans Winterhalder | Petty |
| Frank Walton | (uncredited) |
| Harry Schultz | (uncredited) |
| Earl Wayland Bowman | (uncredited) |
| Ferdinand Schumann-Heink | Brucker |
| Anton Tell | Petty |
| Ben Hall | Elmer |
| Walter C. Kelly | Costello |
| Harry Strang | (uncredited) |
| William Collier Sr. | O'Flaherty |
| Robert Shepherd | (uncredited) |
| George Templeton | (uncredited) |
| Marvin Schecter | (uncredited) |
| Steve Pendleton | Cabot |
| Walter McGrail | Cobb |
| Harry Tenbrook | (uncredited) |
| George Golden | (uncredited) |
| T.J.F. von Blankerburg | (uncredited) |
| Joseph Depew | (uncredited) |
| Robert Ford | (uncredited) |
| Francis Ford | (uncredited) |
| George Harris | (uncredited) |
| Jack Murphy | (uncredited) |
Crew
| Joseph H. August | Director of Photography |
| Peter Brunelli | Original Music Composer |
| John Ford | Director |
| Dudley Nichols | Writer |
| Frank E. Hull | Editor |