Guest Star - Louis Mustillo
Louis Mustillo has guest starred in 1 episode of Stuart Fails to Save the Universe.
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103. Spoiler: Bert is Magic as Alexa
Aired August 6, 2026
Stuart, Denise, Bert and Kripke land in a world where magic is real and scientists are persecuted. While Bert’s newfound powers earn him a devoted following, Stuart and Kripke seek a wizard who can reactivate the vari-state quantum interference device, and Denise struggles with a Stuart who remembers a relationship she never experienced.