Voice actors

Voice Actor	Character(s)
Ellen McLain	GLaDOS / Turrets / Caroline
Mike Patton	The Anger Core
Stephen Merchant	Wheatley
J. K. Simmons	Cave Johnson
Joseph Michael "Joe" Romersa (Accredited as Joe Michaels)	The Announcer
Nolan North	Corrupted Cores / Defective Turrets
Dee Bradley Baker	Atlas / P-Body