Trigger made an early appearance as the mount of Maid Marian, played by Olivia de Havilland in The Adventures of Robin Hood (1938). A short while later, when Roy Rogers was preparing to make his first movie in a starring role, he was offered a choice of five rented "movie" horses to ride and chose him. Rogers bought him eventually in 1943 for his quickness of both foot and mind. Trigger learned 150 trick cues and could walk 50 feet on his hind legs (according to sources close to Roy Rogers). They were said to have run out of places to cue Trigger. Trigger was ridden by Rogers in many of his motion pictures, becoming much loved by the youthful audience that saw him on film and in Rogers' 1950s television series with his wife Dale Evans, who rode her trusty buckskin Quarter Horse Buttermilk.

Filmography

• 1976It's Showtime — Trigger (archive footage)
• 1959Alias Jesse James — Trigger (uncredited)
• 1952Son of Paleface — Trigger
• 1951Heart of the Rockies — Trigger
• 1951In Old Amarillo — Trigger - Roy's Horse
• 1951Pals of the Golden West — Trigger
• 1951South of Caliente — Trigger
• 1951Spoilers of the Plains — Trigger
• The Roy Rogers Show — Trigger
• 1950North of the Great Divide — Trigger
• 1950Sunset in the West — Trigger
• 1950Trail of Robin Hood — Trigger The Smartest Horse in the West
• 1950Trigger, Jr. — Trigger - The Smartest Horse in the Movies
• 1950Twilight in the Sierras — Trigger
• 1949Down Dakota Way — Trigger
• 1949Susanna Pass — Trigger - Roy's Horse
• 1949The Golden Stallion — Trigger - Roy's Horse
• 1948Eyes of Texas — Trigger
• 1948Grand Canyon Trail — Trigger, Roy's Horse
• 1948Melody Time — Trigger
• 1948Night Time in Nevada — Trigger - Roy's Horse
• 1948The Far Frontier — Trigger - Roy's Horse
• 1948The Gay Ranchero — Trigger
• 1948Under California Stars — Trigger
• 1947Apache Rose — Trigger
• 1947Bells of San Angelo — Trigger
• 1947On the Old Spanish Trail — Trigger
• 1947Springtime in the Sierras — Trigger - Roy's Horse
• 1946Heldorado — Trigger - Roy's Horse
• 1946Home in Oklahoma — Trigger
• 1946My Pal Trigger — Trigger
• 1946Out California Way — Trigger
• 1946Rainbow Over Texas — Trigger
• 1946Roll on Texas Moon — The Smartest Horse in the Movies
• 1946Song of Arizona — Trigger
• 1946Under Nevada Skies — Roy's Horse
• 1945Along the Navajo Trail — Trigger
• 1945Bells of Rosarita — Trigger
• 1945Don't Fence Me In — Trigger
• 1945Man from Oklahoma — Trigger
• 1945Sunset in El Dorado — Trigger
• 1945Utah — Trigger
• 1944Cowboy and the Senorita — Trigger
• 1944Hands Across the Border — Trigger
• 1944Lights of Old Santa Fe — Trigger
• 1944San Fernando Valley — Trigger
• 1944Song of Nevada — Trigger, Roy's Horse
• 1944The Yellow Rose of Texas — Roy's Horse
• 1943Idaho — Trigger (uncredited)
• 1943King of the Cowboys — Trigger
• 1943Man from Music Mountain — Trigger - Roy's Horse
• 1943Silver Spurs — Trigger
• 1943Song of Texas — Trigger
• 1942Heart of the Golden West — Trigger
• 1942Man from Cheyenne — Roy's Horse
• 1942Ridin' Down the Canyon — Trigger
• 1942Romance on the Range — Trigger
• 1942South of Santa Fe — Trigger
• 1942Sunset Serenade — Trigger
• 1942Sunset on the Desert — Trigger
• 1942The Sons of the Pioneers — Trigger
• 1941Bad Man of Deadwood — Brett's Horse
• 1941In Old Cheyenne — Trigger, Steve's Horse
• 1941Jesse James at Bay — Jesse's Horse
• 1941Nevada City — Jeff's Horse
• 1941Red River Valley — Trigger
• 1941Sheriff of Tombstone — Brett's Horse
• 1940Rodeo Dough — Trigger
• 1938The Adventures of Robin Hood — Maid Marian's Horse

Appearances as themselves (1)

• 1944Hollywood Canteen — Self