One of Our Spies Is Missing

Robert Vaughn

Napoleon Solo

David McCallum

Illya Kuryakin

Leo G. Carroll

Alexander Waverly

Maurice Evans

Sir Norman Swickert

Vera Miles

Madame Raine De Sala

Ann Elder

Joanna Sweet

Yvonne Craig

Wanda

Bernard Fox

Jordin

Harry Davis

Prof. Alexander Gritsky

Monica Keating

Olga

Dolores Faith

Lorelei Lancer

Ahna Capri

Do Do (as Anna Capri)

Cal Bolder

Fleeton

James Doohan

Phillip Bainbridge

Ollie O'Toole

Corvy

Anthony Eustrel

Steward

Richard Peel

Cat Man

Barry Bernard

Pet Shop Owner

Robert Easton

Mr. Bentley - the Texan

Kenner G. Kemp

Byram Club Member (archive footage) (uncredited)