- Frank Dux was born on 6 April 1956 in Toronto, Canada.
- The son of Holocaust survivors, he immigrated to the United States in 1963 growing up impoverished in the California San Fernando Valley.
- Dux established his own school of Ninjutsu in 1975, called "Dux Ryu Ninjutsu".
- An article about his purported exploits, which appeared in Black Belt in 1980, was the eventual inspiration for the 1988 film Bloodsport starring Jean-Claude Van Damme.
- His last name is pronounced "Dukes".
- Dux states that he was introduced to and trained in Koga Yamabushi Ninjutsu by Senzo Tanaka.
- Dux's martial art style, Dux Ryu Ninjitsu, is not a koryu (15th century feudal form of Ninjutsu), but is still claimed to be "based on its Koga Ninja root principles of adaptability and consistent change".
- Hanshi Frank Dux, AKA “Shi Chang Gui” (his Shaolin name), is described by some as Trevanian’s real life “Shibumi,” whose martial arts feats form the basis of the cult classic film, “Bloodsport.”
- Frank Dux currently is the only foreign national to teach Special Tactics at Mexico City Police Institute, now using his proprietary application technology called DUX FASST (Focus-Action-Skill-Strategy Tactics).
- The 1996 HarperCollins book, The Secret Man: An American Warrior’s Uncensored Story, featured on a Geraldo Rivera Live telecast, unveils Frank Dux as one of the world’s finest covert operatives.
- He actively participates in combating human trafficking activities on an international scale and served as a keynote speaker for the 2010 annual Federal Law Enforcement Association National Conference.
- Former United States Karate Alliance & Professional Karate Association World Champion Victor Moore, described Frank Dux as “the most memorable fighter” he ever fought, the man he could never beat for which he gave him the title “Ultimate Fight Champion” used in promoting Bloodsport from which the UFC gets its name, says Gracie family member and UFC founder, Higan Machado, in a 2002 corporate fund raising documentary.