
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.

The Adventures of Robin Hood
1938 · as Maid Marian's Horse

Melody Time
1948 · as Trigger

Alias Jesse James
1959 · as Trigger (uncredited)

Pals of the Golden West
1951 · as Trigger

It's Showtime
1976 · as Trigger (archive footage)

Silver Spurs
1943 · as Trigger

Son of Paleface
1952 · as Trigger

Hollywood Canteen
1944 · as Self

The Sons of the Pioneers
1942 · as Trigger

Along the Navajo Trail
1945 · as Trigger

Trail of Robin Hood
1950 · as Trigger The Smartest Horse in the West

Grand Canyon Trail
1948 · as Trigger, Roy's Horse

Rodeo Dough
1940 · as Trigger

Sunset on the Desert
1942 · as Trigger

Idaho
1943 · as Trigger (uncredited)

Susanna Pass
1949 · as Trigger - Roy's Horse

Red River Valley
1941 · as Trigger

In Old Cheyenne
1941 · as Trigger, Steve's Horse