From "The Smurfs 2", actor Neil Patrick Harris; comic Jim Gaffigan; musical guests The-Dream feat. Gary Clark Jr.; Bob James & David Sanborn sit in with The Roots.
| Name | Type | Role | |
|---|---|---|---|
| Jim Gaffigan | Guest Star | ||
| Gary Clark Jr. | Guest Star | ||
| David Sanborn | Guest Star | ||
| Bob James | Guest Star | ||
| Neil Patrick Harris | Guest Star | ||
| The-Dream | Guest Star |