Seth Green
The Nerd / Santa Claus / Rudolph / Hermey the Elf (voice)
Jim Hanks
Polar Express Conductor (voice)
Scott Porter
Chris Evans (voice)
Michaela Watkins
Nerd's Mom (voice)
Henry Winkler
Nerd's Dad (voice)
James Wolk
Del Griffith / Fred Claus (voice)
Matthew Senreich
North Pole Valet / Elf (voice)