His biografy
James Montgomery Doohan, March 3, 1920 – July 20, 2005. Was a Canadian actor and author, best known for his role as Montgomery “Scotty” Scott in the television and film series Star Trek. Doohan’s characterization of the Scottish chief engineer of the Starship Enterprise has become one of the most recognizable elements in the Star Trek franchise, and inspired many fans to pursue careers in engineering and other technical fields. He also made contributions behind the scenes, such as the initial development of the Klingon and Vulcan languages.
That evening, Doohan was hit by machine-gun fire when returning to his command post after enjoying a cigarette; a jumpy Canadian sentry fired on his lieutenant, mistaking him for the enemy. Four rounds hit his leg, one passed through his right middle finger and one hit him in the chest, deflecting off the lucky cigarette case given to him by his brother. Later, his right middle finger would have to be amputated, an injury he would often conceal on-screen throughout his career.