Home People Wyllis Cooper Wyllis Cooper movies Wyllis Cooper movies Wyllis Cooper Movies (4) Son of Frankenstein (1939) As Screenplay. He was 39 years old The Phantom Creeps (1939) As Story. He was 39 years old Mr. Moto Takes a Chance (1938) As Original Story. He was 39 years old Thank You, Mr. Moto (1937) As Screenplay. He was 38 years old