Exclusive: Bob Newhart to Appear on Lifetime's Project Five

Bob Newhart has joined Lifetime's new original movie Project Five, TVGuide.com has learned exclusively.

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An anthology of five short films, Project Five explores the impact of breast cancer on people's lives. Newhart, 81, will play Dr. Roth, a longtime friend of Pearl (Jeanne Tripplehorn), who has to tell her some bad news. Pearl is a highly respected oncologist who lost her own mother to breast cancer.Besides Tripplehorn, the cast includes Patricia Clarkson, Rosario Dawson, Kathy Najimy, Tracee Ellis Ross, Tony Shalhoub and Jeffrey Tambor. Jennifer Aniston, Demi Moore, Alicia Keys and Patty Jenkins will each direct.

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Newhart, best known for his sitcoms The Bob Newhart Showand Newhart, most recently guest-starred on NCIS.Project Five will premiere later this year.