Alak Tarr is the son of Datak and Stahma Tarr, Defiance's Castithan power couple, who have many unsavory dealings in the underworld. He is in a relationship with Rafe McCawley's daughter, Christie, going against the wishes of his father and hers, causing friction and some violence. He's helping Christie learn Castithan. Alak is at odds with his family's conventional doctrines and a way of life steeped in long-standing animosities and intense pride.Background: Was born on Earth. Has a radio station set up at the top of the St. Louis Arch.