As was customary in his late Monogram westerns, Johnny Mack Brown plays an undercover agent in Colorado Ambush. Brown is sent to Colorado to stem the activities of a particularly vicious outlaw gang
Johnny Mack Brown
as Johnny Mack Brown
Myron Healey
as Chet Murdock
Lois Hall
as Janet Williams
Tommy Farrell
as Terry Williams
Christine McIntyre
as Mae Star
Lee Roberts
as Henchman Gus
Marshall Bradford
as Ben Williams
Lyle Talbot
as Sheriff Ed Lowery
