Gabriel Byrne Gabriel Byrne

In Treatment will return Monday, Oct. 25, with back-to-back new episodes, the network announced Thursday.

Starring Golden Globe winner Gabriel Byrne as psychotherapist Paul Weston, the third season of HBO's shrink drama will air Mondays and Tuesdays with two half-hour episodes each night.

Amy Ryan books role on In Treatment

Byrne is joined by new cast members Irrfan Kahn, Debra Winger, Dane DeHaan and Amy Ryan.

Previous rotating cast members included Dianne Wiest, Blair Underwood, Embeth Davidtz, Josh Charles, Hope Davis and John Mahoney, among others.