- Eden Sher (Star Butterfly (voice))
- Adam McArthur (Marco Diaz (voice))
- Alan Tudyk (Ludo / King River Butterfly (voice))
Star vs. the Forces of Evil — S4E12
Episode: Kelly's World
Air Date: 2019-03-31
Runtime: 11 min
Overview
Marco and Kelly risk life and limb to return a library book before it's overdue.