Gordon Harrington, Jr. aka John 'Whispering' Smith
Nan Roberts
J. Wesley Hunt
Mrs. Roberts
Cal Stone
Bill Prouty
Rebstock
Gordon Harrington, Sr.
Blake
C. Luddington Colfax
Harrington Office Worker (uncredited)
Secretary (uncredited)
Conductor (uncredited)
Oiler (uncredited)
Caboose Passenger (uncredited)
Denver Police Chief (uncredited)