Writer, Original work, Director · 65 titles
A Mansão de FrankensteinFilm· 1944Writer
A Casa do DráculaFilm· 1945Writer
Sherlock Holmes e a Arma SecretaFilm· 1942Writer
SolidãoFilm· 1928Writer
The Vampire BatFilm· 1933Writer
Tarzan - O Terror do DesertoFilm· 1943Writer
Charlie Chan no PradoFilm· 1936Writer
Charlie Chan em ParisFilm· 1935Writer
Evasão de Bulldog DrummondFilm· 1937Writer
Bulldog Drummond Comes BackFilm· 1937Writer
Bulldog Drummond's RevengeFilm· 1937Writer
The World Gone MadFilm· 1933Writer