Celebrity carolers from across the entertainment spectrum hit the road in search of people who look like they could extra holiday cheer. They then surprise their listeners with their own unique renditions of a classic Christmas carol.
| Actor | Role |
|---|---|
 Conan O'BrienSelf | Self |
 Rashida JonesSelf | Self |
 Shaquille O'NealSelf | Self |
 Charles BarkleySelf | Self |
| JJulian ArmayaSelf - Caroler | Self - Caroler |
 Aryè CamposMom | Mom |
 Jane LynchSelf | Self |
| DDavid CampfieldDad | Dad |
 Kate FlannerySelf | Self |
| RRosalio GarciaSUV Christmas singer rider | SUV Christmas singer rider |
| RRyan LehfeldtEmo Teen | Emo Teen |
| LLucky HarmonSelf - Caroler | Self - Caroler |