Martin Freeman as Bilbo Baggins

Ian McKellen as Gandalf the Grey

Richard Armitage as Thorin Oakenshield

James Nesbitt as Bofur

Ken Stott as Balin

Sylvester McCoy as Radagast the Brown

Barry Humphries as The Great Goblin

Dean O'Gorman as Fili

Aidan Turner as Kili

Graham McTavish as Dwalin

Adam Brown as Ori

Peter Hambleton as Gloin / William Troll

John Callen as Oin

Mark Hadlow as Dori / Bert Troll

Jed Brophy as Nori

William Kircher as Bifur / Tom Troll

Stephen Hunter as Bombur

Andy Serkis as Gollum

Cate Blanchett as Galadriel

Lee Pace as King Thranduil

Hugo Weaving as Elrond

Christopher Lee as Saruman the White

Ian Holm as Old Bilbo Baggins

Elijah Wood as Frodo Baggins

Benedict Cumberbatch as Necromancer

Manu Bennett as Azog the Defiler

Conan Stevens as Bolg

Jeffrey Thomas as Thror

Michael Mizrahi as Thrain

John Rawls as Yazneg

Stephen Ure as Fimbul / Grinnah

Timothy Bartlett as Master Worrywort

Bret McKenzie as Lindir

Kiran Shah as Goblin Scribe

Glenn Boswell as Dwarf Miner

Thomas Robins as Young Thrain

Ruby Acevedo as Cute Young Hobbit

Katie Jackson as Cute Young Hobbit

Isaac Miller as Cute Young Hobbit

Ella Olssen as Cute Young Hobbit

Louis Ashbourne Serkis as Cute Young Hobbit

Sonny Ashbourne Serkis as Cute Young Hobbit

Ruby Ashbourne Serkis as Cute Young Hobbit

Terry Notary as Great Goblin / Yazneg (uncredited)

Peter Jackson as Running Dwarf in Erebor (uncredited)

Brendan Casey as King Thranduil's Lieutenant

Jarred Blakiston as Musical Elf (uncredited)