Troy Winbush

Troy Winbush is an American actor best known for his recurring role as Denny on The Cosby Show.

The Big Bang Theory · S6, E22

The Proton Resurgence

Sheldon and Leonard hire Professor Proton (guest star BOB NEWHART), the host of their favorite childhood TV show, to perform. Also, Howard and Bernadette run into trouble babysitting Raj's dog.