The Big Bang Theory and Young Sheldon never quite pulled off a crossover with Kaley Cuoco’s Penny somehow ending up on the series all about Sheldon Cooper’s pre-Big Bang Theory life, but Young Sheldon still found a way to incorporate Cuoco into a recent episode.
It fell to Young Sheldon co-creator and former Big Bang Theory executive producer Steve Molaro to confirm Cuoco’s contribution.
She wasn’t playing Penny, and she wasn’t even credited in the episode.