Directed by George Sherman
Written by William Colt MacDonald
Produced by William A. Berke
Cinematography by Reggie Lanning
Distributed by Republic Pictures
John Wayne as Stony Brooke
Ray 'Crash' Corrigan as Tucson Smith
Raymond Hatton as Rusty Joslin
Don 'Red' Barry as Will Parker
Pamela Blake (as Adele Pearce) as Irene Parker
LeRoy Mason as Joe Balsinger
Charles Middleton as Luke Parker
Katherine Kenworthy as Mrs. Parker
Elmo Lincoln as U.S. Marshal Gregg
Jack Ingram as Sheriff Nolan
David Sharpe as Newt
Jack Kenny as Amos Doyle
Yakima Canutt as Henchman Ed Sims
While driving cattle through Wyoming, the Three Mesquiteers become embroiled in conflict with a corrupt politician while trying to help an impoverished family survive.
The Three Mesquiteers series was a series of 8 films made by Republic studios through 1938 to 1939 starring John Wayne.
Parts of Wyoming Outlaw were shot in Lancaster, CA.
Elmo Lincoln came out of retirement to play the Marshal for Wyoming Outlaw.