Chuck Zito is a former bodyguard for Mickey Rourke, and also worked as his stunt man for some of the martial arts scenes in Point Blank (1998).
All of the numbers on the train cars shown in various parts of the film add up to the number 13.
Ray Liotta was originally cast in the role of Detective Larry Mullane, a part that eventually went to David Zayas after Liotta had to bow out, due to a scheduling conflict.
Not credited but seen several times in the gambling scenes during the Russian roulette games is the late Actor/Stuntman Steve Dash. Steve was most known for playing the first adult appearance of Jason Vorhees in Friday the 13th Part 2. He wore a burlap sack over his head in the film but it's still Steve. He later went on to have a career as a Mob Boss in several roles due to his signature gray hair and Brooklyn persona. Steve sadly passed away in late 2018.