- Country: USA
- Genres: Western
- Release: 1936-04-14
- Director: Howard Bretherton
- Writers: Doris Schroeder , Vernon Smith , Clarence E. Mulford
- Language: English
- Stars: William Boyd , James Ellison , Onslow Stevens , Muriel Evans , George ‘Gabby’ Hayes , Claude King , William Duncan , Clara Kimball Young , John St. Polis , Ernie Adams
- Runtime: 67 min
- Awards: N/A
- AKA: Le cavalier mystère (France, French Republic) , L'evaso giustiziere (Italy) , Three on the Trail (Canada) , Três Sobre a Pista (Brazil) , Præriens Musketerer (Denmark) , Diligensöverfallet (Sweden) , Bar 20 Three (United States of America) , Three on the Trail (United States of America) , 3 on the Trail (United States of America) , Three on the Trail (United Kingdom) , Cavalcata infernale (Italy) , Överfallet vid Gunsight (Sweden) , Postrøverne (Denmark) , Colorado (Belgium) , Three on the Trail , 3 on the Trail (Australia)
- Plot: An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop them without help from the sheriff who turns out be a major outlaw himself.
- IMDB:tt0028377
Three on the Trail Cast · · · ALL
Howard Bretherton
Director
William Boyd
Hopalong Cassidy
George ‘Gabby’ Hayes
Windy Halliday
James Ellison
Johnny Nelson
Muriel Evans
Mary Stevens
Onslow Stevens
Pecos Kane
John St. Polis
Sheriff Sam Corwin
Claude King
J. P. Ridley
William Duncan
Buck Peters
Clara Kimball Young
Rose Peters
Al Hill
Henchman Kit Thorpe
Ted Adams
Henchman Jim Trask
Jack Rutherford
Henchman Lewis
Ernie Adams
Idaho
Joe Rickson
Saloon Henchman at Peephole