Hasegawa strikes the Landers' estate at night, killing Frank in front of Mary Anne, then abducting her to Venarius' martial arts arena. Cole enters, and picks off the henchmen one by one before ultimately killing Venarius. Hasegawa releases Mary Ann, and the two ninja engage in a final battle. Cole defeats Hasegawa, who begs to be allowed to die with honor, Cole agrees and beheads him. Cast Franco Nero as Cole Susan George as Mary-Ann Landers Sho Kosugi as Hasegawa Christopher George as Charles Venarius Alex Courtney as Frank Landers Will Hare as "Dollars" Zachi Noy as Siegfried "The Hook" Schultz Constantine Gregory as Mr. Parker (credited as Constantin de Goguel) Dale Ishimoto as Komori Joonee Gamboa as Mr. Mesuda Leo Martinez as "Pee Wee" Ken Metcalfe as Elliot Subas Herrero as Alberto Alan Amiel as Maroon Ninja Doug Ivan as Maroon Ninja Production Enter the Ninja was based on an original story that Mike Stone presented to Menahem Golan of Cannon Films, who became involved in the production in late fall 1980, with the intent of creating an American film about ninjutsu. In the October 7, 1980 issue of Daily Variety, it was announced that Metro-Goldwyn-Mayer (MGM) would produce the film for $4 million, as part of a multi-project film and television deal with The Cannon Group. The film was initially set to star Karate champion Mike Stone, while Variety announced later that Stone was writing the script. The Hollywood Reporter reported in January 1981 that confirmed that principal photography began one day earlier on January 12, 1981, in the Philippines and in Tokyo, Japan., under the direction of Emmett Alston. Variety later noted that on February 18, 1981 that shooting had begun in Manila but with Golan as director and Franco Nero replacing Stone in the lead role. Stone receives onscreen credit for the film's story, fight choreography, and stunt coordination. Principal photography concluded in March 1981. Release Cannon planned to screen the film at the Cannes Film Festival, which was followed by promotional material stating the film would be released during the Easter season in 1982. In the August 12, 1981 issue of Variety, Cannon Films took out a full page ad announcing that the film had opened in Germany and France and was a hit. The film also played in Arizona in October 1981. An issue of Variety from January 13, 1982 declared that the film