Roger Kendall
J.J. 'Big Joe' Helton
Matthews
Bart Quillan (as Rockcliffe Fellows)
Kells
Phillip Flagg
Sir Bruce Haden
Nick Nash
Garon Bourke
John Randolph
Dr. Langwell
Police Captain Fred O'Reilly
Martin Doremus
John Levings
Jim Barston (a bushrider) / Jim Barston (heir to Barston Manor)
Detective-Sergeant Mather
Dave Tolliver
John Madison (as Rockcliffe Fellowes)
Stephen Carey
Davidge
Harry Cortland / Tim Purcell
Owen [at 25] Conway
John Miller
Angus Campbell
Harry Anderson
Friend Helping Tommy (uncredited)
Mr. Stone
Tom Romaine
George Taylor
Jack Berry
Richard Talbot
Phil Powers
Curly Bogard
Stephen Bates
Sir Melmoth Craven
Arthur Bennett
John Blake
Mr. Schofield
Jack Garrison
Underwood
Del Cole
Dr. Robert Mason
Joe Maestro
Bob Mason
Clyde Bainbridge
Tom Levitt