Theta is the Slow talking partner of Omicron. He is the Smartest Known Alpha Series, He was Created For Andrew Ryan for War Strategies To beat Atlas. He also has the ability to speak, The reason he is so smart is Because he has a overdose of Brainstorm and SenseRadar Tonics. He Revives you to stop a Corrupt Alpha Series, Named Subject Kappa. When playing he will act as Player 2 if you have someone playing with you. Or act as a CPU that helps you. He is Armed with a Prototype Rivet Gun.