
He began working in vaudeville in 1935 and was discovered in burlesque.
He appeared in dozens of films.
Eddie Collins played Dopey in Snow White and the Seven Dwarfs. Dopey is the only dwarf who does not have a beard. He is clumsy and mute, with Happy explaining that he has simply "never tried" to speak. In the movie's trailer, Walt Disney describes Dopey as "nice, but sort of silly".
In the Disney film also he provided the sneezing of the chipmunk and the squirrel. -wikiepedia

Snow White and the Seven Dwarfs
1938 · as Dopey / Chipmunk and Squirrel Sneezes (voice) (uncredited)

Drums Along the Mohawk
1939 · as Christian Reall

In Old Chicago
1938 · as Drunk

Young Mr. Lincoln
1939 · as Efe Turner

The Blue Bird
1940 · as Tylo (the dog)

The Return of Frank James
1940 · as Station Agent

Up the River
1938 · as Fisheye Conroy

Diamond Jim
1935 · as Bicycle Act

Charlie Chan in Honolulu
1938 · as Al Hogan

Sally, Irene and Mary
1938 · as Ship's Captain

Alexander's Ragtime Band
1938 · as Corporal Collins

Charlie Chan in Reno
1939 · as Cab Driver

Heaven with a Barbed Wire Fence
1939 · as Bill - Counterman

Down on the Farm
1938 · as Cyrus Sampson

Little Miss Broadway
1938 · as Band Member

Quick Millions
1939 · as Henry 'Beaver' Howard

Hollywood Cavalcade
1939 · as Keystone Cop Driver

News Is Made at Night
1939 · as Billiard