"Mathmagic" is the first segment of the thirtieth episode of Star vs. the Forces of Evil. It premiered on February 13, 2017 alongside "The Bounce Lounge", and is the first segment of the seventeenth episode in the second season.
When Star refuses to solve a problem in math class, she learns that avoiding her least favorite subject may have cosmic repercussions.
- Eden Sher as Star Butterfly
- Adam McArthur as Marco Diaz
- Dee Dee Rescher as Miss Skullnick
- Jim Gaffigan as Father Time
- Carl Weathers as Omnitraxus Prime
- Abby Elliott as Janna Ordonia