Billy Magnussen Goes Shirtless as Kato Kaelin on 'The People v. O.J. Simpson'

Billy Magnussen shows off his buff body while going shirtless on the series premiere of American Crime Story: The People v. O.J. Simpson.

The 30-year-old Tony-nominated actor plays the role of Kato Kaelin, the man who was staying in O.J.‘s guest house the night his ex-wife Nicole Brown Simpson was murdered.

Kato became one of the most prominent witnesses in the trial and he was ridiculed for his behavior during his testimony.

Billy is most famous for his role as one of the princes in Into the Woods and his work in two of this year’s Best Picture nominees – The Big Short and Bridge of Spies.

Catch American Crime Story every Tuesday night at 10/9c on FX!