A biochemist develops a process that reverses ageing but, when he disappears, it's up to Napoleon Solo and Ilya Kuryakin to recover or destroy the process before it falls into the hands of the THRUSH.
Napoleon Solo
Illya Kuryakin
Alexander Waverly
Sir Norman Swickert
Madame Raine De Sala
Joanna Sweet
Wanda
Jordin
Prof. Alexander Gritsky
Olga
Lorelei Lancer
Do Do (as Anna Capri)
Fleeton
Phillip Bainbridge
Corvy
Steward
Cat Man
Pet Shop Owner
Mr. Bentley - the Texan