Edward Furlong and Tom Sizemore

TNT's new Eric McCormack crime drama Perception, set to debut in summer 2012, has already booked an eclectic lineup of guest stars to come play with the Emmy-winning Will & Grace star. Roger Bart, who played Desperate Housewives' crazed pharmacist, and two actors who have toiled with pharmaceuticals and the law in real life — Edward Furlong (Terminator 2) and Tom Sizemore, have been cast in suspicious roles.     

Roger will play a high-powered IRS agent questioned in connection with the murder of a cult member, while Edward and Tom will appear together in an episode centered around an Irish crime syndicate. Tom will play a top-level mobster and Edward will play a rising underworld figure. 

Worlds away from Will & Grace, Perception finds Eric playing Dr. Daniel Pierce, an eccentric neuroscientist and university professor called upon by his former student (Rachael Leigh Cook) to help the feds solve complex criminal cases. Though Pierce's intimate knowledge of human behavior gives him an edge in reading people, he's a bit of a social moron.

Does this sound like a series you'd add to your record list? 

Subscribe to TV Guide Magazine today!