Star vs. the Forces of Evil Season 4 Episode 31
Mama Star
Star, Marco, Janna and Tom lose their memories as they traverse amnesia-inducing waters to get back to Mewni.
Guest Stars
Abby Elliott
Janna Ordonia (voice)
Rider Strong
Tom Lucitor (voice)
Jon Heder
Oskar Greason (voice)
Kate Higgins
Firstborn (voice)