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
H
Harry Davis
Prof. Alexander Gritsky
M
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
R
Richard Peel
Cat Man
Barry Bernard
Pet Shop Owner
Robert Easton
Mr. Bentley - the Texan
Kenner G. Kemp
Byram Club Member (archive footage) (uncredited)
William H. O'Brien
The Butler (archive footage) (uncredited)
Jeffrey Sayre
Meeting Guest (archive footage) (uncredited)