Jimmy reads his favorite tweets with the hashtag #LastMinuteCostumes, then catches up with Millie Bobby Brown and Michael Imperioli before welcoming musical guest Tegan and Sara.
| Name | Type | Role | |
|---|---|---|---|
| Tegan & Sara | Musical Guest | ||
| Sara Quin | Musical Guest | Tegan & Sara | |
| Tegan Quin | Musical Guest | Tegan & Sara | |
| Noah Schnapp | Guest Star | ||
| Michael Imperioli | Guest Star | ||
| Millie Bobby Brown | Guest Star |