Surly, a curmudgeon, independent squirrel is banished from his park and forced to survive in the city. Lucky for him, he stumbles on the one thing that may be able to save his life, and the rest of park community, as they gear up for winter - Maury's Nut Store.
| Actor | Role |
|---|---|
 Will ArnettSurly (voice) | Surly (voice) |
 Brendan FraserGrayson (voice) | Grayson (voice) |
 Liam NeesonRaccoon (voice) | Raccoon (voice) |
 Katherine HeiglAndie (voice) | Andie (voice) |
 Stephen LangKing (voice) | King (voice) |
 Maya RudolphPrecious (voice) | Precious (voice) |
 Jeff DunhamMole (voice) | Mole (voice) |
 Gabriel IglesiasJimmy (voice) | Jimmy (voice) |
 Sarah GadonLana (voice) | Lana (voice) |
| JJames RankinFingers (voice) | Fingers (voice) |
 Scott YapheLucky (voice) | Lucky (voice) |
 Joe PingueJohnny (voice) | Johnny (voice) |
 Annick ObonsawinJamie (voice) | Jamie (voice) |
 Julie LemieuxGirl Scout (voice) | Girl Scout (voice) |
 Rob TinklerRedline / Buddy (voice) | Redline / Buddy (voice) |
| JJames KeeRat / Armoured Guard (voice) | Rat / Armoured Guard (voice) |
 Scott McCordPolice Officer / Misc. Animals (voice) | Police Officer / Misc. Animals (voice) |
 Katie GriffinPigeon (voice) | Pigeon (voice) |
 PSYSpecial Cast | Special Cast |