Tywin Lannister: Tywin (Charles Dance) had arrived back in King’s Landing to rejoin his family when Season Two ended. He replaced Tyrion as the King’s Hand, and is grandfather to Joffrey. Back Story: Tywin is Lord of Casterly Rock, Shield of Lannisport and Warden of the West, which makes him one of the most powerful lords in Westeros. He has some major father-son issues with Tyrion. He is the center of the Lannister’s power.