Oyunculuk
Doğum tarihi: 24 Nisan 1910 – Ölüm tarihi: 7 Şubat 195342 yaşındaDoğum yeri: Amsterdam, Noord-Holland, Netherlands
Phantom of Chinatown
Jonas
Mad Youth
Count DeHoven
The Dawn Express
Otto
Confessions of a Vice Baron
Lucky Lombardi aka Count de Hoven / Van Hersten / Kilonis
You Can't Beat the Law
Rico
The Panther's Claw
John Martin George (as William Castello)
Road to Happiness
Party Guest
Special Agent K-7
Eddie Geller
Melody Trail
Gypsy Frantz
De Jantjes
Dries
Chasing Trouble
Kurt
Drums of the Desert
Addullah (as William Castello)
Heroes of the Alamo
General Cos
The Wages of Sin
Tony Kilonis
Border Romance
Lieutenant of Rurales