It wasn't his first film, but Byron Barr changed his name to Gig Young after playing a character by that name in "The Gay Sisters" (1942).
A role in a film is a character portrayed by an actor.
The movie poster is the first hint to the audience regarding the theme(s) and principal character(s) in an upcoming film .
The most represented historical character on film is Napoleon Bonaparte.
Dan Akryoyd
His character was portrayed by Nick Stabile.
The character of Q is portrayed by English actor Ben Whishaw in the James Bond film Skyfall (2012).
The main character in the film No Way Out (1987) is Lieutenant Commander Tom Farrell. He is portrayed by Kevin Costner.
The main character in the Disney Descendants film franchise is Mal, the daughter of Maleficent. She is portrayed by Dove Cameron.
No, Will Smith did not play a gay conman in his first film. Will Smith made his film debut in "Where the Day Takes You" (1992), playing the role of Manny. The character he portrayed was not a gay conman.
The character of May Day was portrayed by Jamaican singer and actress Grace Jones in the 1985 James Bond film A View to a Kill.
The Prima Donna is the first or the leading lady. In acting she is typically shown as the most important character in the film or novel; She can also be portrayed as the what the English call a "Diva".
David Thewlis for oodles