Orson Bean. Orson Bean was 49 in The Hobbit as 'Bilbo Baggins (voice)'.
John Huston. John Huston was 71 in The Hobbit as 'Gandalf the Grey (voice)'.
Hans Conried. Hans Conried was 60 in The Hobbit as 'Thorin (voice)'.
Richard Boone. Richard Boone was 60 in The Hobbit as 'Smaug (voice)'.
Theodore Gottlieb. Theodore Gottlieb was 71 in The Hobbit as 'Gollum (voice)'.
Otto Preminger. Otto Preminger was 71 in The Hobbit as 'Elvenking (voice)'.
Cyril Ritchard. Cyril Ritchard was 79 in The Hobbit as 'Elrond (voice)'.
Paul Frees. Paul Frees was 57 in The Hobbit as 'Bombur/Troll #1 (voice)'.
Don Messick. Don Messick was 51 in The Hobbit as 'Balin/Troll #3/Goblin/Lord of the Eagles (voice)'.
John Stephenson. John Stephenson was 54 in The Hobbit as 'Dori/Great Goblin/Bard (voice)'.
Jack DeLeon. Jack DeLeon was 52 in The Hobbit as 'Dwalin / Fíli / Kíli / Óin / Glóin / Ori / Nori / Bifur (voice)'.
Glenn Yarbrough. Glenn Yarbrough was 47 in The Hobbit as 'The Balladeer (voice)'.
Thurl Ravenscroft. Thurl Ravenscroft was 63 in The Hobbit as 'Goblin (voice)'.
Arthur Rankin, Jr.. Arthur Rankin, Jr. was 53 in The Hobbit as 'Director, Production Design, Producer'
Jules Bass. Jules Bass was 42 in The Hobbit as 'Producer, Director, Lyricist'
Romeo Muller. Romeo Muller was 49 in The Hobbit as 'Screenplay'
Maury Laws. Maury Laws was 53 in The Hobbit as 'Original Music Composer, Songs'
J. R. R. Tolkien. J. R. R. Tolkien would have been no older than 81 in The Hobbit as 'Novel'Tsuguyuki Kubo. Tsuguyuki Kubo was 35 in The Hobbit as 'Animation Supervisor'Minoru Nishida. Minoru Nishida was >> in The Hobbit as 'Background Designer'Glenn Yarbrough. Glenn Yarbrough was 47 in The Hobbit as 'Songs'Takashi Hisaoka. Takashi Hisaoka was >> in The Hobbit as 'Storyboard Artist'