Guest Star: Stephen Hawking
Stephen Hawking is a noted theoretical physicist, cosmologist, author and professor. His research into general relativity and quantum gravity achieved popularity with his book, A Brief History of Time.
You are viewing a list of Stephen Hawking's 2 appearances on The Big Bang Theory.
Season 5, Episode 21 - The Hawking Excitation
Aired April 5, 2012
Howard is working with Professor Stephen Hawking and, knowing how much Sheldon admires him, is going to let Sheldon meet him. When Sheldon is yet again rude and condescending towards Howard, he decides to have some fun before introducing Sheldon to Professor Hawking.
Appeared as Himself
Season 6, Episode 6 - The Extract Obliteration
Aired November 1, 2012
Penny has started taking a history class at the local college but she doesn't want Leonard to know. Meanwhile, Sheldon worries about his friendship with Stephen Hawking after a game of "Words with Friends".
Appeared as Himself (V.O.)