Cast & crew
Thundering Frontier (1940)
Directed by D. Ross Lederman Written by Paul Franklin
Cast
| Charles Starrett | Jim Olmeyer |
| John Tyrrell | Mac Eliot |
| Alex Callam | Scottie |
| Fred Burns | Hank |
| Bob Nolan | English Bob |
| Iris Meredith | Belknap |
| Ray Bennett | Ed Dillinger / Sark |
| Carl Stockdale | Belknap |
| George Chesebro | Dirk |
| Karl Farr | (uncredited) |
| John Dilson | Herbert Carter |
| Francis Walker | Stub |
| Pat Brady | (uncredited) |
| Hugh Farr | (uncredited) |
| Ray Jones | (uncredited) |
| Eddie Laughton | Clem |
| Lloyd Perryman | (uncredited) |
| Tim Spencer | (uncredited) |
| Blackie Whiteford | (uncredited) |
Crew
| D. Ross Lederman | Director |
| Paul Franklin | Writer |