When mysterious but adorable creatures called Mayoi suddenly appear in San Fransokyo, Hiro is convinced that they're part of some nefarious plot by Liv Amara.
| Name | Type | Role | |
|---|---|---|---|
| Han-Yee Ling | Writer | ||
| Christy Carlson Romano | Guest Star | ||
| John Michael Higgins | Guest Star | ||
| Maya Rudolph | Guest Star | ||
| Jenifer Lewis | Guest Star | ||
| Haley Tju | Guest Star | ||
| Diedrich Bader | Guest Star | ||
| Lucas Neff | Guest Star | ||
| Alan Tudyk | Guest Star | ||
| Dee Bradley Baker | Guest Star | ||
| Patton Oswalt | Guest Star | ||
| Mara Wilson | Guest Star | ||
| Ben Feldman | Guest Star | ||
| Kenji Ono | Director |