Professione giustiziere

It was originally intended that Bronson's real-life wife Jill Ireland play Holland's (Bronson) wife Rhiana, but as associate producer she advocated for Theresa Saldana to play the role. Saldana had survived being stabbed ten times with a 5 1/2-inch hunting knife by an obsessive stalker only 2 years earlier and was looking to get back into acting in films. After much debate with the producers Saldana was allowed to play the role and insisted on doing some of her own (minor) stunts to prove she was physically alright. That same year, Saldana played herself in the film Victims for Victims: The Theresa Saldana Story (1984), which reenacted her miraculous survival of the murder attempt.

The doctor's Mercury Grand Marquis which is attacked by the miners during the climax switches from an early 1980s model to a 1974 Ford LTD.

Writers R. Lance Hill and David Lee Henry are the same person. Hill was given the chance to adapt his own novel but used the pseudonym David Lee Henry. His work on the script was eventually written out by John Crowther, though the pseudonym of Henry still received a credit.

The original UK cinema version was cut by 52 secs by the BBFC with a further 10 secs being cut from the video release. The electricity torture scene was very heavily edited and the film also suffered cuts from the opening fight in the bar and assorted gunshot wounds. All BBFC cuts were restored in the 2007 Network DVD release, though the print used is the U.S R-rated version and missing brief blood spurts from the shooting of Briggs and Randolph's gory death.

Featured in Remo, Rambo, Reagan and Reds: The Eighties Action Movie Explosion (2014)