Ralph Meeker

Mike Hammer

Albert Dekker

Dr. G.E. Soberin

Paul Stewart

Carl Evello

Juano Hernández

Eddie Yeager

Wesley Addy

Lt. Pat Murphy

Marian Carr

Friday

Maxine Cooper

Velda

Cloris Leachman

Christina Bailey

Nick Dennis

Nick

Jack Lambert

Sugar Smallhouse

Jack Elam

Charlie Max

Leigh Snowden

Cheesecake

Percy Helton

Doc Kennedy

Marjorie Bennett

Manager

Strother Martin

Harvey Wallace

John George

Popcorn Vendor (uncredited)

Fortunio Bonanova

Carmen Trivago

Nat King Cole

Self - Singer (voice)

Leonard Mudie

Athletic Club Clerk (uncredited)

James McCallion

Horace

Robert Cornthwaite

FBI Agent

Silvio Minciotti

Mover

Paul Richards

Attacker

Jesslyn Fax

Horace's Wife

James Seay

FBI Agent