Maurice LaMarche

as Balto / Moose 1 / Moose 2 (voice)

Jodi Benson

as Jenna (voice)

Sean Astin

as Kodi (voice)

Charles Fleischer

as Boris / White Mountain Postmaster (voice)

Bill Fagerbakke

as Ralph / Mr. Conner (voice)

Keith Carradine

as Duke (voice)

Charity James

as Dusty (voice)

Kathy Najimy

as Dipsy (voice)

David Paymer

as Mel (voice)

Kevin Schon

as Muc / Luc / Simpson (voice)

Jean Smart

as Stella (voice)

Carl Weathers

as Kirby (voice)