The new season of HBO's critically-acclaimed 'In Treatment' will premiere on Mon., Oct. 25.

Look for Debra Winger and Amy Ryan (Holly from 'The Office') to join series star Gabriel Byrne in the show's third season. Winger will play a new patient of Byrne's Dr. Paul Weston, and Ryan will play Dr. Weston's new therapist, Amy.

The format for the third season is still unknown, though previous seasons followed five-night-a-week schedule.