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.
Robert VaughnNapoleon Solo
David McCallumIllya Kuryakin
Leo G. CarrollAlexander Waverly
Maurice EvansSir Norman Swickert
Vera MilesMadame Raine De Sala
Ann ElderJoanna Sweet
Yvonne CraigWanda
Bernard FoxJordinHarry DavisProf. Alexander GritskyMonica KeatingOlga
Dolores FaithLorelei Lancer
Ahna CapriDo Do (as Anna Capri)
Cal BolderFleeton
James DoohanPhillip Bainbridge
Ollie O'TooleCorvy
