Orson Bean

as Bilbo Baggins (voice)

John Huston

as Gandalf the Grey (voice)

Hans Conried

as Thorin (voice)

Richard Boone

as Smaug (voice)

Theodore Gottlieb

as Gollum (voice)

Otto Preminger

as Elvenking (voice)

Cyril Ritchard

as Elrond (voice)

Paul Frees

as Bombur/Troll #1 (voice)

Don Messick

as Balin/Troll #3/Goblin/Lord of the Eagles (voice)

John Stephenson

as Dori/Great Goblin/Bard (voice)

Jack DeLeon

as Dwalin / Fíli / Kíli / Óin / Glóin / Ori / Nori / Bifur (voice)

Glenn Yarbrough

as The Balladeer (voice)

Thurl Ravenscroft

as Goblin (voice)