Curd Jürgens

Professor Immanuel Rath

May Britt

Lola-Lola

Theodore Bikel

Klepert

John Banner

Principal Harter

Fabrizio Mioni

Rolf

Ludwig Stössel

Dr. Fritz Heine

Wolfe Barzell

Clown

Gene Roth

Drunken Sea Captain (uncredited)

Stella Stevens

Chorus Girl (uncredited)

BarBara Luna

Chorus Girl (uncredited)

Cosmo Sardo

Customer (uncredited)

Brian Avery

Ansbach, Student (uncredited)

Al Bain

Club Patron (uncredited)

John Bleifer

Blue Angel Proprietor (uncredited)

Franklyn Farnum

Blue Angel Customer (uncredited)

John George

Club Patron (uncredited)

Stuart Holmes

Club Patron (uncredited)

William Kirschner

Professor (uncredited)

Norbert Schiller

Landlord (uncredited)

Scott Seaton

Club Patron (uncredited)

Cap Somers

Club Patron (uncredited)

Arthur Tovey

Club Patron (uncredited)

Otto Waldis

Policeman (uncredited)