Guest Star :: Bob Newhart

Bob Newhart

Bob Newhart is an American stand-up comedian and actor known for his deadpan delivery and slight stammer. Newhart first came to fame in the 1960s with his comedy album, The Button-Down Mind of Bob Newhart.

As an actor he is best known for his long-running sitcoms The Bob Newhart Show and Newhart in the 1970s and '80s. In recent years, Newhart has made guest appearances on shows including ER, Desperate Housewives, NCIS, and The Big Bang Theory.

Bob Newhart won the first Emmy award of his five-decade career for his appearance as Arthur Jeffries, a.k.a. Professor Proton, in The Big Bang Theory episode "The Proton Resurgence".

On the big screen, Newhart has appeared in films including Catch-22, The Librarian, Legally Blonde 2: Red, White & Blonde, Elf, and Horrible Bosses.

 Bob Newhart has guest starred in 3 episodes of Young Sheldon.

  1. Pilot

    101. Pilot as Professor Proton

    Aired September 25, 2017

    Sheldon and Missy watch Professor Proton's science show on TV as he demonstrates a clock powered by a potato.
  2. Spock, Kirk, and Testicular Hernia

    109. Spock, Kirk, and Testicular Hernia as Professor Proton

    Aired December 21, 2017

    When Sheldon tricks Missy into giving up control of the TV, he switches to the Professor Proton show.
  3. : Teenager Soup and a Little Ball of Fib

    310. Teenager Soup and a Little Ball of Fib as Professor Proton

    Aired December 12, 2019

    Sheldon pretends to be sick to avoid having to swim in the pool at school. Meanwhile, Dr. Sturgis spies on Meemaw's new boyfriend.
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