Tom Hanks

as Hero Boy (Adult)/ Father / Conductor / Hobo / Scrooge / Santa Claus

Leslie Zemeckis

as Sister Sarah / Mother

Eddie Deezen

as Know-It-All

Nona Gaye

as Hero Girl (voice)

Peter Scolari

as Billy / Lonely Boy

Michael Jeter

as Smokey / Steamer

Josh Hutcherson

as Hero Boy (motion capture)

Daryl Sabara

as Hero Boy (voice)