Young Sheldon is packed with cameos. Get ready to dive deep into the world of Young Sheldon guest stars! Such legendary stars as David Hasselhoff and Reba McEntire had hilarious guest appearances.
The late Ray Liotta and a sci-fi powerhouse Ming-Na Wen also showed up. The Big Bang Theory stars also took part: Kaley Cuoco voiced the pool water in Sheldon's nightmare. Mayim Bialik and Simon Helberg also made voice cameos.
Lance Reddick played a professor who made Sheldon hate engineering. Comedic genius of Jason Alexander and Bob Newhart are just as beloved as on TBBT. Watch this video to also uncover the subtle cameos of Melissa Tang, Vernee Watson-Johnson, and the magical duo Penn & Teller.

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