Bill Nye as Himself
A science communicator, television presenter, and a mechanical engineer who happened to land in The Big Bang Theory set for a guest appearance. It sounds like a significant episode! The title of the episode was “The Proton Displacement.” for sure, there are lots of great appearances. However, to the rest of the world, he is “Bill Bye the Science Guy.” and certainly will always be.
Carrie Fisher as Herself
Carrie Fisher’s appearance in one episode entitled “The Convention Conundrum” in 2014 definitely made a huge impact. That is why great Carrie Fisher made it on this list! Her memory will forever live on, Princess Lea always in our hearts.