After finding out her grandmother won't be visiting for Christmas, Lucy decides to cheer herself up by throwing the ultimate New Year's Eve party. Meanwhile, Charlie Brown tries to fulfill one of his resolutions before the clock strikes midnight.
| Actor | Role |
|---|---|
 Etienne KelliciCharlie Brown (voice) | Charlie Brown (voice) |
 Isabella LeoLucy (voice) | Lucy (voice) |
 Wyatt WhiteLinus (voice) | Linus (voice) |
 Terry McGurrinSnoopy (voice) | Snoopy (voice) |
 Rob TinklerWoodstock / Spike / Olaf (voice) | Woodstock / Spike / Olaf (voice) |
 Lexi PerriPeppermint Patty (voice) | Peppermint Patty (voice) |
 Hattie KragtenSally (voice) | Sally (voice) |
 Holly GorskiMarcie (voice) | Marcie (voice) |
 Caleb BellavanceFranklin (voice) | Franklin (voice) |
| NNatasha NathanPatty (voice) | Patty (voice) |
 Charlie BoyleViolet (voice) | Violet (voice) |
 Jacob SoleyPigpen (voice) | Pigpen (voice) |
| MMatthew MucciSchroeder (voice) | Schroeder (voice) |
| WWill BhanejaShermy (voice) | Shermy (voice) |
 Jacob MazeralJose Peterson (voice) | Jose Peterson (voice) |
| LLucas NguyenLloyd (voice) | Lloyd (voice) |
 Katie GriffinBelle (voice) | Belle (voice) |
 Mark EdwardsAndy (voice) | Andy (voice) |
 Cory DoranMarbles (voice) | Marbles (voice) |
 Harley RuzniskyTapioca Pudding (voice) | Tapioca Pudding (voice) |
 Maya MisaljevicFrieda (voice) | Frieda (voice) |