He will play Ben Hollander, an architect suffering with macular degeneration. As his progressive loss of sight increasingly affects his ability to work, Hollander also begins to lose interest in the world. He befriends Dr. Susan Lewis (Sherry Stringfield), who develops an odd attachment to him.
The first episode of Newhart's three-episode arc is slated to air October 30.
Newhart won four Emmys -- one for his work on the 1960s NBC comedy series "The Bob Newhart Show" and three for his CBS sitcom "Newhart." He also has three Grammys, all from 1961, including the album of the year prize.
Newhart most recently co-starred on the big screen in "Legally Blonde 2: Red, White & Blonde."