This pre-taped extravaganza features video segments from MBMBaM, Sawbones, Shmanners, Wonderful, Still Buffering, and Neat!, as well as appearances from special guests!
| Actor | Role |
|---|---|
 Justin McElroySelf / Chris Evergreen | Self / Chris Evergreen |
 Travis McElroySelf | Self |
 Griffin McElroySelf | Self |
 Sydnee McElroySelf / Tabitha Bigcity | Self / Tabitha Bigcity |
 Teylor SmirlSelf / Tabitha's Friend | Self / Tabitha's Friend |
 Rachel McElroySelf | Self |
| TTommy SmirlSelf / Tabitha's Dad | Self / Tabitha's Dad |
| TTeresa McElroySelf | Self |
 Barbara DunkelmanSelf | Self |
 Clint McElroySanta Clause | Santa Clause |
| CCarol McElroyProfessor Clause | Professor Clause |
| MMatt ChapmanStrong Bad (Voice) / Homestar Runner (Voice) | Strong Bad (Voice) / Homestar Runner (Voice) |
 Rob CorddrySelf | Self |
 Lin-Manuel MirandaSelf | Self |
 Laser WebberSelf | Self |
 Aubrey TurnerSelf | Self |
 Erika IshiiSelf | Self |
| AAmanda ColemanSelf | Self |
 Mara WilsonSelf | Self |
 Felicia DaySelf | Self |
| CCharlie McElroySelf | Self |
| BBebe McElroySelf | Self |
| HHenry McElroySelf | Self |
 Ron FunchesSelf | Self |
 Jeremiah WatkinsSelf | Self |
 Ben SchwartzSelf | Self |
| MMary SmirlChris' Mom | Chris' Mom |
 Melissa FumeroSelf | Self |
 Krystina ArielleSelf | Self |
| DDwight SlappeJesus Impersonator | Jesus Impersonator |