Vitus Tesla (archive footage)

Mr. Wong (archive footage)

Lyle Talbot (archive footage)

Armand Tesla

Rosalind Darrow

Count Vega

Mary Ankers

Grant Gardner

Detective Mike Flanigan

Ace Zucco

Edna Oliver

George Carradine

Angelina Weston

Lucy Weston

Madame Ouspenskaya

Doctor Colin

Mr. Buchannon - Attorney