Noted comedian who won an Emmy for his perfromance on The Big Bang Theory as Arthur Jefferies AKA Professor Proton. Bob started out in stand up in the 1950's and went on to television and movies. He is best known for his television series, The Bob Newhart Show and Newhart. He also appeared in the movies Catch-22, Cold Turkey, The Rescuers, First Family, Legally Blonde 2 and Elf. He appeared on three episodes of The Big Bang Theory.