Bob Newhart As Arthur Jeffries
Arthur Jeffries, popularly known as Professor Proton, was played by Bob Newhart, who was the star of a science show that Sheldon and Leonard used to watch as children. Mr. Wizard was a fictional character created as a tribute to him. Newhart is a well-known comedian in his own right. He was nominated for a Primetime Emmy Award for his performance.
Kunal Nayyar As Rajesh Koothrappali
Raj was the final member of the Big Bang Theory’s geek squad, and he played a crucial role. Raj, an astrophysicist from New Delhi, suffered from such severe social anxiety with ladies that he was unable to communicate effectively. In 2015 and 2018, Kunal Nayyar was the third-highest-paid television actor in the world, according to Forbes.