Directed by
| Jules Bass | ||
| Arthur Rankin Jr. | ||
Writing Credits
| J.R.R. Tolkien | ... | (novel) |
| Romeo Muller | ... | (adapted for the screen by) |
Cast (in credits order) complete, awaiting verification
| Orson Bean | ... | Bilbo Baggins (voice) | |
| Richard Boone | ... | Smaug (voice) | |
| Hans Conried | ... | Thorin Oakenshield (voice) | |
| John Huston | ... | Gandalf The Grey (voice) | |
| Otto Preminger | ... | The Elvenking (voice) | |
| Cyril Ritchard | ... | Elrond (voice) | |
| Theodore Gottlieb | ... | Gollum (voice) (as Theodore) | |
| Paul Frees | ... | Bombur / Bill Huggins - Troll Leader (voice) | |
| Jack DeLeon | ... | Dwalin / Fíli / Kíli / Óin / Glóin / Ori / Nori / Bifur / Bofur / Bert - Troll #2 / Goblin / Orc / Spiders / Wood Elves / Lake People (voice) (as Jack De Leon) | |
 |
Don Messick | ... | Balin / Tom - Troll #3 / Grinnah - The Goblin / Goblin / Orc / Gwaihir - Lord of the Eagles (voice) |
| John Stephenson | ... | Dori / Bard / Great Goblin (voice) | |
| Glenn Yarbrough | ... | The Balladeer (voice) | |
| Rest of cast listed alphabetically: | |||
|
|
Thurl Ravenscroft | ... | Goblin / Orc / Bolg / Chorus (voice) (uncredited) |
Produced by
| Jules Bass | ... | producer |
| Arthur Rankin Jr. | ... | producer |
| Masaki Îzuka | ... | associate producer (as Masaki Iizuka) |
Music by
| Maury Laws | ... | (music composed, arranged & conducted by) |
Production Design by
| Arthur Rankin Jr. | ||
Art Department
| Takashi Hisaoka | ... | storyboard artist (uncredited) |
Sound Department
| Tom Clack | ... | sound effects |
| John Curcio | ... | sound recordist |
| Bob Elder | ... | sound recordist |
| Dave Iveland | ... | sound recordist |
Animation Department
| Lester Abrams | ... | character designer |
| Yukiyoshi Hane | ... | animator |
| Tôru Hara | ... | animation coordinator (as Toru Hara) |
| Kazuko Itoh | ... | animator |
| Hidetoshi Kaneko | ... | animator |
| Ikkô Kobayashi | ... | animator (as Kazuyuki Kobayashi) |
| Hidemi Kubo | ... | animator |
| Tsuguyuki Kubo | ... | animation supervisor / character designer |
| Minoru Nishida | ... | background designer |
| Kôichi Sasaki | ... | animation director |
| Katsuhisa Yamada | ... | animation director |
| Tadakatsu Yoshida | ... | animator |
| Hidetoshi Kaneko | ... | background artist (uncredited) |
Music Department
| Maury Laws | ... | conductor / music arranger |
| Lois Winter | ... | choral direction |
| Glenn Yarbrough | ... | main title theme writer and performer: "The Greatest Adventure" |
| Bill Lee | ... | singer (uncredited) |
| Gloria O'Brien | ... | featured vocalist (uncredited) / singer: theme music (uncredited) |
| Thurl Ravenscroft | ... | chorus (uncredited) / featured vocalist (uncredited) |
| Glenn Yarbrough | ... | featured vocalist (uncredited) / singer (uncredited) |
