Ex-insurance investigator Ian Souter sets up his own security agency - the SIS (Specialists in Security) - along with ex-cop Robert Shoesmith & secretary Heather Keys - and fight crime.
Andrew Faulds
Ian Souter
14 episodes
Michael Atkinson
Robert Shoesmith
Ann Morrish
Heather Keys
John Robinson
Edmund Newton
1 episode
Gerald Sim
Tony Kimber
Michael Collins
Inspector Ward
John Bluthal
Vladimir Kropotny
Roger Delgado
Boris Slankin
Brian Wilde
Happy Dyer
Gerald Harper
Hon. Arthur Keir