Robert Vaughn

Napoleon Solo

David McCallum

Illya Kuryakin

Luciana Paluzzi

Angela

Pat Crowley

Elaine May Bender Donaldson

Fritz Weaver

Andrew Vulcan

William Marshall

Sekue Ashumen

Will Kuluva

Mr. Allison

Ivan Dixon

Jean Francis Soumarin

Victoria Shaw

Gracie Ladovan

Eric Berry

Alfred Ghist

Joseph V. Perry

Assault Force Member

Joyce Taylor

Margaret Oberon (uncredited)

Rupert Crosse

Gen. Molte Nobuk (uncredited)

Robert Brubaker

Assault Force Member (uncredited)

John Bryant

Henchman (uncredited)

Sharyn Hillyer

Stewardess (uncredited)

Roy Jenson

Assault Force Member (uncredited)

Kenner G. Kemp

Party Guest (uncredited)

Richard Kiel

Thug in Vulcan's Factory (archive footage) (uncredited)

Cynthia Lynn

Party Guest (uncredited)

Mario Siletti Jr.

Del Floria (uncredited)