Robert Clotworthy is an American voice actor. Clotworthy is best known as the narrator for History Channel's show Ancient Aliens and his role as the voice of Jim Raynor in StarCraft, its expansion StarCraft: Brood War, and its sequels StarCraft II: Wings of Liberty and StarCraft II: Heart of the Swarm.
Twelve years after the release of StarCraft, Clotworthy reprised his role as Raynor in StarCraft II: Wings of Liberty. The storyline of Wings of Liberty focuses primarily on the Terrans and Raynor in particular, with Raynor taking the role of main character. A review of Wings of Liberty on ITP.net stated that Raynor was "voiced to perfection" by Clotworthy and he was selected as the winner of "GotY Awards 2010 – Best Voice Acting" by reactiontime.co.uk.