Judd Hirsch has joined the cast of Damages, Entertainment Weekly reports.
Hirsch, 76, will play Patty's former mentor who has now hit rock bottom.
John Goodman joins Damages as Season 4's villain
The fourth season, which will air exclusively on DirecTV, will focus on a wrongful death suit against a military contractor. John Goodman will play the corrupt CEO of the company, while Chris Messina's character works under him.
Hirsch, who previously starred on CBS' Numb3rs, has appeared on Law & Order: SVU, The Whole Truth, Warehouse 13 and the 1996 film Independence Day.