Guest Star - Penn Jillette
Penn Jillette has guest starred in 1 episode of Stuart Fails to Save the Universe.
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101. Spoiler: Gary Dies as Penn
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.
Other Shows
Penn Jillette guest starred in 1 episode of Young Sheldon.
522. A Clogged Pore, a Little Spanish and the Future as A.V.
Aired May 19, 2022
Sheldon panics when he notices the first sign of his impending puberty. Meanwhile, Mary and George hunt for jobs, while Georgie devises a scheme to make more money.