Patrick Warburton (THE TICK, SEINFELD) has joined the cast of Seth MacFarlane's TED, reports Deadline.com. He will play the sexually frustrated co-worker of John (Mark Wahlberg), a commitment-phobe who hides behind his fowl-talking teddy bear that he wished to life when he was kid. Mila Kunis will play John's girlfriend and MacFarlane will lend his voice to Ted the teddy bear. The cast also includes Giovanni Ribisi and Joel McHale.