Mystery Man is a 1944 American Western film directed by George Archainbaud and written by J. Benton Cheney. The film stars William Boyd, Andy Clyde, Jimmy Rogers, Don Costello, Eleanor Stewart and Francis McDonald. The film was released on May 31, 1944, by United Artists.^[1][2]

Hoppy, California & Jimmy Rogers set out to stop a gang of bank robbers led by a man pretending to be respectable citizen.^[3]

• William Boyd as Hopalong Cassidy
• Andy Clyde as California Carlson
• Jimmy Rogers as Jimmy Rogers
• Don Costello as Bud Trilling
• Eleanor Stewart as Diane Newhall
• Francis McDonald as Henchman Bert Rogan
• Forrest Taylor as Sheriff Sam Newhall
• Jack Rockwell as Marshal Ted Blane
• John Merton as Henchman Bill
• Pierce Lyden as Henchman Red
• Bob Burns as Rancher Tom Hanlon
• Ozie Waters as Tex