Los Angeles, Aug 20 (IANS) Actor-screenwriter Justin Theroux has been compared to a Ken doll -- the fictional boyfriend of toy doll Barbie -- by Damon Lindelof, executive producer of "The Leftovers". Lindelof says there is nothing his friend can't do and he has many different sides to his personality, reports femalefirst.co.uk. "He's a Ken doll. But he's Every-Ken. Astronaut Ken. Interior designer Ken. But in terms of what he can do as an actor, say his name and people are like, 'Oh, that sounds familiar'. He could be much bigger than he is in terms of notoriety," Lindelof told Mr Porter magazine. Theroux also joked that his career is extremely "bipolar" because of the variety of roles he has taken on. "My favourite thing to play is stupid and confident. It's a very bipolar career. There's no strategy or logical sense, and I think my Wikipedia page proves that," Theroux said.