Short answers, pulled from the story.
Vin Diesel's real name is Mark Sinclair Vincent. He was born on the 18th of July 1967. He adopted the stage name Vin Diesel while working as a bouncer at the New York nightclub Tunnel, taking "Vin" from his mother's surname Vincent and "Diesel" from a friends' nickname for his high energy.
Diesel made his stage debut at age seven in the children's play Dinosaur Door at Theater for the New City in Greenwich Village, after the theater's artistic director offered him a role instead of calling the police when he broke in. His first film role was an uncredited extra in the 1990 drama Awakenings, and he gained major attention when director Steven Spielberg cast him in Saving Private Ryan in 1998 after seeing his self-made short film Multi-Facial.
Multi-Facial is a 1995 semi-autobiographical short film that Vin Diesel wrote, directed, produced, and starred in. It follows a struggling multiracial actor caught in the audition process. The film was selected for screening at the 1995 Cannes Film Festival, which led director Steven Spielberg to cast Diesel in Saving Private Ryan.
Vin Diesel has appeared as Dominic Toretto in eight main Fast and Furious films: The Fast and the Furious (2001), Fast & Furious (2009), Fast Five (2011), Fast & Furious 6 (2013), Furious 7 (2015), The Fate of the Furious (2017), F9 (2021), and Fast X (2023). He also made uncredited cameos in the 2003 short Turbo Charged Prelude and Tokyo Drift in 2006.
Vin Diesel voices Groot in the Marvel Cinematic Universe, beginning with Guardians of the Galaxy in 2014. He has portrayed the character across six superhero films, including Avengers: Infinity War and Avengers: Endgame, and reprised the role in the Disney+ animated series I Am Groot (2022-2023).
Yes, Vin Diesel founded the video game studio Tigon Studios and has provided his voice and motion capture for all of its releases. He voiced the character Richard B. Riddick in The Chronicles of Riddick: Escape from Butcher Bay (2004) and The Chronicles of Riddick: Assault on Dark Athena (2009), winning Spike Video Game Awards for Best Performance by a Human Male for both games.