Onder andere met: Michael Caine (Harry Palmer), Nigel Green (Major Dalby), Guy Doleman (Colonel Ross), Sue Lloyd (Jean Courtney), Gordon Jackson (Carswell), Aubrey Richards (Dr. Radcliffe), Frank Gatliff (Bluejay), Thomas Baptiste (Barney), Oliver MacGreevy (Housemartin), Freda Bamford (Alice), Pauline Winter (Charlady), Anthony Blackshaw (Edwards), Barry Raymond (Gray), David Glover (Chilcott-Oakes), Stanley Meadows (Inspector Keightley)