- Anton Yelchin starred as Chekov in the new Star Trek film
- He made his debut in films at age nine with A Man Is Mostly Water
- His breakout performance was in the 2006 crime thriller Alpha Dog
"The news is so sad and true," Jennifer Allen said in a statement.
Mr Yelchin "was killed in a fatal traffic collision early this morning," she added. "His family requests you respect their privacy."
The accident took place in the driveway of Mr Yelchin's San Fernando Valley home around 1:10 am when he was preparing to meet friends for a rehearsal and momentarily left his car, Los Angeles Police Department spokeswoman Jenny Hauser said.
The car "rolled backward down his steep driveway, pinning him against a brick mailbox pillar and security fence," she said.
After he failed to show up, his friends found him dead by the car, she added, saying it was unclear how long after the accident they arrived.
Born in Russia, Mr Yelchin moved to the United States when he was six months old with his parents, star figure skaters with the Leningrad Ice Ballet.
"I tried ice-skating and wasn't very good at it," he told the Daily Beast in 2011, saying that a friend of his parents urged them to enroll him in acting classes.
He made his debut in films at age nine in A Man Is Mostly Water and also starred in several television dramas and films.
His breakout performance came in the 2006 crime thriller Alpha Dog. Hs movie credits include J.J Abrams's Star Trek, Star Trek into Darkness and Star Trek Beyond which is set for release next month.
He starred most recently in last year's critically acclaimed thriller Green Room. He was also a member of the band HammerHeads.
Mr Yelchin's fellow actor John Cho, who also starred in the new Star Trek series, was among those to mourn the loss of his colleague on Twitter.
I loved Anton Yelchin so much. He was a true artist - curious, beautiful, courageous. He was a great pal and a great son. I'm in ruins.— John Cho (@JohnTheCho) June 19, 2016
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)