The Shawshank Redemption and The Departed actor Mark Rolston is responsible for the voice work for Deathstroke the Terminator in Batman: Arkham Origins.
Creative director Eric Holmes revealed the news last night during a Reddit AMA.
"Wow, there have been so many people chasing that one. Exclusive reveal, it's Mark Rolston who brings the Terminator to life," Holmes said.
Rolston also played Lex Luthor in the Young Justice TV series and provided the voice for Captain Del Rio in Halo 4.
Voicing Batman in Arkham Origins is Roger Craig Smith, who played Ezio in Assassin's Creed II and Chris Redfield in Resident Evil 6. The Joker will be played by Troy Baker, who voiced Joel from The Last of Us and Booker DeWitt in BioShock Infinite.
Deathstroke is one of multiple assassins in Batman: Arkham Origins, which will be released next week on the Xbox 360, PlayStation 3, Wii U, and PC.