Dempsey uses a Colt Python .357 Magnum revolver, Makepeace a Smith and Wesson .38 Special. When Michael Brandon appears as General Sanchez in the Doctor Who story 'The Stolen Earth' his character uses the same weapon. After the series ended the crew gave Brandon the deactivated pistol as a souvenir
The music being played in the club where Makepeace is under cover is a jazz version of the show's theme tune.