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)