The Isle of Lost Ships is a 1929 talking film released in an alternative silent version with a Vitaphone track of effects and music. It was produced by Richard A. Rowland and distributed by Warner Bros..
| Actor | Role |
|---|---|
 Jason Robards Sr.Frank Howard | Frank Howard |
 Virginia ValliDorothy Whitlock / Renwick | Dorothy Whitlock / Renwick |
 Clarissa SelwynneAunt Emma / Mrs. Renwick | Aunt Emma / Mrs. Renwick |
 Noah BeeryCaptain Peter Forbes | Captain Peter Forbes |
 Robert Emmett O'ConnorJackson | Jackson |
 Harry CordingGallagher | Gallagher |
| MMargaret FieldingMrs. Gallagher | Mrs. Gallagher |
 Kathrin Clare WardMother Joyce / Burke | Mother Joyce / Burke |
 Robert HomansMr. Burke | Mr. Burke |
 Jack AckroydHarry | Harry |
| SSam BakerNative Tribeman | Native Tribeman |
| GGinger ConnollyLittle Boy (uncredited) | Little Boy (uncredited) |
 George F. MarionOld Sea Captain (uncredited) | Old Sea Captain (uncredited) |
| GGus SavilleNew Englander (uncredited) | New Englander (uncredited) |
| GGarry WatsonLittle Boy (uncredited) | Little Boy (uncredited) |