When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.
When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.
Guest Cast
![Carol Ann Susi](https://static.tvmaze.com/uploads/images/medium_portrait/4/10334.jpg)
Carol Ann Susi
voices Mrs. WolowitzCast Appearances
![Penny](https://static.tvmaze.com/uploads/images/medium_portrait/175/439563.jpg)
Kaley Cuoco
as PennyEpisode Discussion
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