Following some pretty intense final negotiations, Eric McCormack has closed a deal to return to TNT as the star of the network’s pilot Perception. The Will & Grace alum will play the lead in the project, Dr. Geoffrey Pierce, an eccentric, frequently erratic and absolutely brilliant neuroscientist who helps the FBI solve complex cases. Kenneth Biller and Mike Sussman co-wrote the pilot, which is produced by ABC Studios. McCormack will serve as producer. At TNT, McCormack previously toplined ad agency drama Trust Me.