It's Arbor Day and Professor Teachman surprises his Community-College class with a visit from a special guest who is going to enlighten the students about the complex meaning of this wondrous holiday.
| Actor | Role |
|---|---|
| IIan BondsSmart Wiseman/ Sir Arbor The First | Smart Wiseman/ Sir Arbor The First |
| BBrad BukowskyBay Hawaii | Bay Hawaii |
| KKelly CavanaughChipper Wood-chipper Girl | Chipper Wood-chipper Girl |
| SStacey EcklerImpossible Girl | Impossible Girl |
| EEllen EggerEsther McNonperson | Esther McNonperson |
| DDanielle GoetzingerGossiping Girl | Gossiping Girl |
| CCoby McFaulStew | Stew |
| SSean O'BrienKick Choppington | Kick Choppington |
 Bob RoseCheeks "Cheeks" Easton | Cheeks "Cheeks" Easton |
| MMatt SmithSelf | Self |
| BBen StahlTopples Branches | Topples Branches |
| MMichael C. StettesProfessor Teachman/Sir Arbor the Not First | Professor Teachman/Sir Arbor the Not First |
| JJeffrey VolpeJefferson Plymouth | Jefferson Plymouth |