Big Bang Theory: 6 Unforgettable Guest Stars Who Stole the Show
The iconic sitcom had its share of surprising celebrity guests.
The CBS sitcom about four nerd friends and their regular neighbor started small but quickly became the biggest comedy series on network television. World-famous celebrities were sure to take notice of the show's popularity and agreed to appear on it as themselves or in small episodic roles. Some of these guest stars completely stole the show from the cast, surprising and delighting viewers with their unexpected appearances.
Here are six of The Big Bang Theory's best guest stars.
Mark Hamill
Fans have been hoping for a cameo from the iconic actor for quite some time, as Sheldon himself was a big fan of Hamill's. So when the actor attended Sheldon and Amy's wedding as the guest of honor and returned the favor to Howard, both characters and fans were moved to tears.
James Earl Jones
The voice of Darth Vader changed the rules of the game with his appearance on the sitcom, as Jones became the main hero of the entire episode. After Sheldon meets him at the restaurant, the two go on a wild night out, even visiting Carrie Fisher at one point.
Stephen Hawking
People were absolutely stunned to see the legendary scientist appear in the comedy show. The characters finally got to meet their hero in person, and Hawking didn't disappoint, giving fans a hilarious performance.
Stan Lee
The creator of Marvel Comics was widely known to have a great sense of humor, so his appearance on The Big Bang Theory was only a matter of time. In one episode, Sheldon visits the artist at his home and tries to meet him — only to get slapped with a restraining order.
Bob Newhart
The iconic comedian didn't make a cameo appearance on the show but played an episodic character for four seasons. Professor Proton quickly became a fan favorite, as the former children's science show host was brought to life through Newhart's mannerisms and dry humor.
Buzz Aldrin
The second man to walk on the moon appeared briefly on the show, but his performance was memorable, to say the least. Aldrin wasn't afraid to make fun of himself, so the scene where he argues with little kids during Halloween while praising himself was just hilarious.