James Montgomery "Jimmy" Doohan was an Irish-Canadian character and voice actor 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 was one of the most recognizable elements in the Star Trek franchise, for which he also made several contributions. Many of the characterizations, mannerisms, and expressions that he established for Scotty and other Star Trek characters have become entrenched in popular culture.
Following his success with Star Trek, he supplemented his income and showed continued support for his fans by making numerous public appearances. Doohan often went to great lengths to buoy the large number of fans who have been inspired to make their own accomplishments in engineering and other fields, as a result of Doohan's work and his encouragement.
Doohan, was born in Vancouver, British Columbia, the youngest of four children of William and Sarah Doohan, who emigrated from Bangor, County Down, Northern Ireland. His father was a pharmacist, veterinarian, and dentist; his mother was a homemaker. Doohan's father reportedly invented an early form of high-octane gasoline in 1923. In Doohan's 1996 autobiography, he tells of his father's alcoholism and how he tormented his family. The family moved to Sarnia, Ontario, and Doohan attended high school at the Sarnia Collegiate Institute and Technical School, where he excelled in mathematics and science. Doohan also enrolled in the 102nd Royal Canadian Army Cadet Corps.
At the beginning of the Second World War, Doohan joined the Royal Canadian Artillery. He was commissioned a lieutenant in the 13th Field Artillery Regiment of the 3rd Canadian Infantry Division. Doohan went to the United Kingdom in 1940 for training. His first combat was the invasion of Normandy at Juno Beach on D-Day. Shooting two snipers, Doohan led his men to higher ground through a field of anti-tank mines, where they took defensive positions for the night. Crossing between command posts at 11:30 that night, Doohan was hit by six rounds fired from a Bren gun by a nervous Canadian sentry: four in his leg, one in the chest, and one through his right middle finger. The bullet to his chest was stopped by a silver cigarette case. His right middle finger had to be amputated, something he would conceal during his career as an actor.