Darren McGavin

Carl Kolchak

Jo Ann Pflug

Louise Harper

Simon Oakland

Tony Vincenzo

Scott Brady

Capt. Schubert

Wally Cox

Mr. Berry

Margaret Hamilton

Prof. Crabwell

Richard Anderson

Dr. Richard Malcolm

John Carradine

Llewellyn Crossbinder

Al Lewis

Tramp

Nina Wayne

Charisma Beauty

Virginia Peters

Wilma Krankheimer

Kate Murtagh

Janie Watkins

Ivor Francis

Dr. Webb

Diane Shalet

Joyce Gabriel

Anne Randall

Policewoman Sheila

Francoise Birnheim

Restaurant Woman

Regina Parton

Merissa (Ethel Parker)

David Armstrong

Police Officer (uncredited)

Margaret Bacon

Reporter (uncredited)

Al Beaudine

Reporter (uncredited)

Loren Brown

Bar Patron (uncredited)

Bill Clark

Bar Patron (uncredited)

Robert Cole

Reporter (uncredited)

Tony Dante

Reporter (uncredited)

George DiCenzo

Underground Tour Guide (uncredited)

Rudy Doucette

Man on Tour (uncredited)

Bob Harks

Bar Patron (uncredited)

Chester Hayes

Bar Patron (uncredited)

Bill McLean

Charlie the Bartender (uncredited)

Joe Phillips

Detective (uncredited)

Al Roberts

Police Officer (uncredited)

Arnold Roberts

Reporter (uncredited)

Hank Robinson

Police Officer (uncredited)

Bob Templeton

Bar Patron (uncredited)

George Tracy

Bar Patron (uncredited)

George Washburn

Police Officer (uncredited)