Du Barry Was a Lady
1943 · Flunky (uncredited)
You Can't Beat the Law
1943 · Rico
Confessions of a Vice Baron
1943 · Lucky Lombardi aka Count de Hoven / Van Hersten / Kilonis
Bowery at Midnight
1942 · Jeweler (uncredited)
The Dawn Express
1942 · Otto
The Panther's Claw
1942 · John Martin George (as William Castello)
Road to Happiness
1941 · Party Guest (uncredited)
You're Out of Luck
1941 · Johnny Burke
Foreign Correspondent
1940 · Krug's Henchman at Windmill (uncredited)
Phantom of Chinatown
1940 · Jonas
Mystery Sea Raider
1940 · Radio Operator
Mad Youth
1940 · Count DeHoven
Chasing Trouble
1940 · Kurt
Hidden Enemy
1940 · Eric Bowman
Drums of the Desert
1940 · Addullah (as William Castello)
Balalaika
1939 · Capt. Testoff
Wanted by the Police
1938 · Russo
The Wages of Sin
1938 · Tony Kilonis
