The Alpha Men: The pseudo-philosophical Society of Alpha trades in secrets and subversions, tapping the minds of its members by means of hypnosis. Philip West and Diana join the Society as part of their investigation.
Regular Cast: Clifford Evans (Sir Iain Dalzell), Anthony Valentine (Philip West), Alexandra Bastedo (Diana Dalzell), Brian Peck (Culliford)
Guest Cast: Terence Alexander, Roy Stephens, Hans De Vries, Amanda Walker, Andrew Sachs, David Lyell, John Savident, Hilda Campbell-Russell
Writer: Victor Canning / Director: Ronald Wilson
Original Airdate: 9 Jun 1970 on BBC One
Series: Codename Season 1 Episode 10