Despite his history with CBS — quitting two hit series, "Chicago Hope" and "Criminal Minds," during their runs — Mandy Patinkin is returning to guest on the network’s new medical drama "Three Rivers," reports the Associated Press.

Patinkin is doing the show to tell a personal story, how he received a corneal implant to improve his eyesight which has been impaired by keratoconus, a degenerative disorder of the eye.

–Allison J. Waldman