Guest Star - Ryan Cartwright
Ryan Cartwright has guest starred in 2 episodes of Stuart Fails to Save the Universe.
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101. Spoiler: Gary Dies as Kyle
Aired July 23, 2026
After breaking a quantum-interference device, mild-mannered comic book store owner Stuart Bloom must save the universe from imminent destruction.
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102. Spoiler: Zack's in This One as Kyle
Aired July 30, 2026
Stuart, Bert, Denise, and Barry Kripke find themselves in an idyllic, peaceful Earth...that happens to be controlled by a repressive and vicious AI.
Other Shows
Ryan Cartwright guest starred in 1 episode of The Big Bang Theory.
608. The 43 Peculiarity as Cole
Aired November 15, 2012
Howard and Raj are intrigued when they notice Sheldon disappears every day at 2:45. When they secretly follow Sheldon down to the basement, they are made even more curious by the number 43 written on a blackboard. Meanwhile, Leonard gets jealous when Penny invites a guy in her history class over to study.