William Gillis

1919

• [ ] His Majesty, the American (Undetermined Role) 

1920

• [ ] The Last Straw (Two Bits) 
• [ ] Ruth of the Rockies (Pendleton Pete) 

1921

• [ ] Conflict (Hasdrubel Ginger) 
• [ ] Riding with Death (Captain Jack Hughes) 

1925

• [ ] Straight Through (Sheriff) 
• [ ] Ridin' Pretty (Gloom (as Bill Gillis)) 

1930

• [ ] The Big Trail (Pioneer (uncredited)) 

1931

• [ ] Sundown Trail (Ranch Hand Goober) 
• [ ] The Squaw Man (Card Player) 

1932

• [ ] Lawless Valley (Rustler) 
• [ ] Beyond the Rockies (Watches Barroom Fight (uncredited)) 
• [ ] Ride Him, Cowboy (Townsman (uncredited)) 

1933

• [ ] Fargo Express (Posse Rider) 

1935

• [ ] It's A Small World (Snake Brown, Sr.) 

1937

• [ ] The Cherokee Strip (Town Carpenter) 

1938

• [ ] The Cowboy and the Lady (Party Guest (uncredited)) 

1939

• [ ] Union Pacific ((uncredited)) 
• [ ] Destry Rides Again (Barfly (uncredited)) 

1940

• [ ] The Westerner (Leon Beauregard (uncredited)) 
• [ ] The Grapes of Wrath (Migrant (uncredited))