We don't have a biography for Walter Barnett yet. Hang in there, or go ahead and contribute one.
Appearances
In Treatment
Guest cast, played by John Mahoney
- Episode 2x04: Walter - Week One (Apr 6, 2009)
- Episode 2x09: Walter - Week Two (Apr 13, 2009)
- Episode 2x14: Walter - Week Three (Apr 20, 2009)
- Episode 2x19: Walter - Week Four (Apr 27, 2009)
- Episode 2x24: Walter - Week Five (May 4, 2009)
- Episode 2x29: Walter - Week Six (May 18, 2009)
- Episode 2x34: Walter - Week Seven (May 25, 2009)