Sly and dry intelligence agent Harry Palmer is tasked with investigating British Intelligence security, and is soon enmeshed in a world of double-dealing, kidnap and murder when he finds a traitor operating at the heart of the secret service.
Michael Caine
as Harry Palmer
Nigel Green
as Major Dalby
Guy Doleman
as Colonel Ross
Sue Lloyd
as Jean
Gordon Jackson
as Carswell
Aubrey Richards
as Radcliffe
Frank Gatliff
as Bluejay
Thomas Baptiste
as Barney
Oliver MacGreevy
as Housemartin
Freda Bamford
as Alice
Pauline Winter
as Charlady
Anthony Blackshaw
as Edwards
