The gang travels to Newtopia to say their goodbyes and finally send all three girls home. However, someone has other plans.
| Name | Type | Role | |
|---|---|---|---|
| Jenava Mie-Hudek | Writer | ||
| Michele Cavin | Writer | ||
| Tara Badawy | Producer | ||
| Jack Ferraiolo | Producer | Co-Producer | |
| Troy Baker | Guest Star | Toad Soldiers | |
| Eric Bauza | Guest Star | Mr. Wu | |
| Zehra Fazal | Guest Star | General Yunan | |
| Matt Braly | Guest Star | Frobo | |
| Anna Akana | Guest Star | Sasha Waybright | |
| Stephen Root | Guest Star | Mayor Toadstool | |
| Troy Baker | Guest Star | Captain Grime | |
| Jack McBrayer | Guest Star | Toadie | |
| Haley Tju | Guest Star | Marcy Wu | |
| Keith David | Guest Star | King Andrias | |
| Bill Farmer | Guest Star | Toad Soldiers | |
| Sumalee Montano | Guest Star | Mrs. Wu | |
| Michelle Dockery | Guest Star | Lady Olivia | |
| Matt Braly | Executive Producer | ||
| Jennifer 'Jenn' Strickland | Director | ||
| Kyler Spears | Director |