Guest Stars Sarah Chalke voices Magee William Morgan Sheppard voices The Big Guy Hayes MacArthur voices Thrasher Phil LaMarr voices Crumbles Chris Parnell voices Mr. Thistleton Rob Riggle voices Noel Emily Alyn Lind voices Grace Goodwin Stevie Wermers-Skelton voices Miscellaneous Elves Chris Harrison voices Gene the Salesman Grace Potter voices Carol Dorothy McKim voices Miscellaneous Elves Kevin Deters voices Hop With Me Bunny