Pierre Coffin Minions (voice) Raymond S. Persi Head Elf (voice) Carlos Alazraqui Santa / Driver / Adult Reindeer / Elves (voice) Tara Strong Scouts / Shop Owner / Baby Reindeer / Elves (voice) Brian T. Delaney Mailman / Adult Reindeer / Elves (voice) Miranda Cosgrove Margo (voice) Jessica DiCicco Scouts (voice) John DiMaggio Scout Master (voice) Dana Gaier Edith (voice) Nev Scharrel Agnes (voice) Cory Walls Gawky Teen / Additional Voices (voice) John Kassir Coffee Shop Manager (voice) Benedict Cumberbatch The Grinch (voice) Chris Renaud Norman / Pipsqueak (voice) Danny Mann Harold (voice)