Frodo and Sam are trekking to Mordor to destroy the One Ring of Power while Gimli, Legolas and Aragorn search for the orc-captured Merry and Pippin. All along, nefarious wizard Saruman awaits the Fellowship members at the Orthanc Tower in Isengard.
- Frodo: Elijah Wood
- Gandalf: Ian McKellen
- Arwen: Liv Tyler
- Aragorn: Viggo Mortensen
- Gollum: Andy Serkis
- Sam: Sean Astin
- Galadriel: Cate Blanchett
- Gimli / Treebeard (voice): John Rhys-Davies
- Théoden: Bernard Hill
- Saruman: Christopher Lee
- Pippin: Billy Boyd
- Merry: Dominic Monaghan
- Legolas: Orlando Bloom
- Elrond: Hugo Weaving
- Éowyn: Miranda Otto
- Faramir: David Wenham
- Gríma: Brad Dourif
- Éomer: Karl Urban
- Denethor (Extended Edition): John Noble
- Boromir (Extended Edition): Sean Bean
- Haldir: Craig Parker
- Aldor: Bruce Allpress
- Madril: John Bach
- Man Flesh Uruk: Sala Baker
- Sharku / Snaga: Jed Brophy
- Eothain: Sam Comery
- Haleth: Calum Gittins
- Hero Orc: Phil Grieve
- Gamling: Bruce Hopkins
- Théodred: Paris Howe Strewe
- Ugluk: Nathaniel Lees
- Háma: John Leigh
- Mauhúr: Robbie Magasiva
- Morwen: Robyn Malcolm
- Rohan Soldier: Bruce Phillips
- Mordor Orc: Robert Pollock
- Freda: Olivia Tennet
- Bereg: Raymond Trickitt
- Grishnakh: Stephen Ure
- Wildman (Extended Edition): Timothy Lee
- Ranger I (Extended Edition): Phillip Spencer Harris
- Hero Orc (uncredited): Victoria Beynon-Cole
- Hero Orc (uncredited): Lee Hartley
- Cute Rohan Refugee Child (uncredited): Billy Jackson
- Cute Rohan Refugee Child (uncredited): Katie Jackson
- Orc / Ranger (uncredited): Frazer Anderson
- Gondorian Soldier / Ranger / Orc (uncredited): Ben Barrington
- Elf Warrior / Rohan Stable Boy (uncredited): Jarl Benzon
- Orolonn (uncredited): Jørn Benzon
- Rivendell Elf (uncredited): Owen Black
- Rohan Woman (uncredited): Dorothy Anne Bonner
- Fereveldir (uncredited): Ben Britton
- Rohan Refugee Child (uncredited): Riley Brophy
- Damrod (uncredited): Alistair Browning
- Rohan Refugee (uncredited): Alix Bushnell
- Uruk-hai (uncredited): Sean Button
- Uruk-hai (uncredited): Ryan Carey
- Uruk-hai (uncredited): Rodney Cook
- Uruk-hai (uncredited): Augie Davis
- Gondorian Soldier / Harad Warrior / Orc / Rohan Soldier / Uruk-hai (uncredited): Mana Hira Davis
- Harad Warrior / Uruk-hai (uncredited): Shane Dawson
- Easterling Warrior (uncredited): Karlos Drinkwater
- Rohan Soldier (uncredited): Aron Eastwood
- Rohan Man (uncredited): Frank Edwards
- Harad Warrior (uncredited): Clint Elvy
- Elf Warrior (uncredited): Alexia Fairbrother
- Elf Warrior / Rivendell Elf (uncredited): Daniel Falconer
- Orc / Uruk-hai (uncredited): Siaosi Fonua
- Anglor (uncredited): Kester Fordham
- Elf (uncredited): Michael Fowler
- Anendel / Thandronen (uncredited): Ben Fransham
- Rohan Refugee (uncredited): Frank Goldingham
- Uruk-hai (uncredited): Winham Hammond
- Elf Warrior (uncredited): Jonathan Harding
- Rohan Boy (uncredited): Lucas Hayward
- Rohan Recruit (uncredited): Dan Hennah
- Théoden’s Royal Guard (uncredited): Jason Hood
- Uruk-hai (uncredited): Lani Jackson
- Spear-Throwing Rohan Soldier (uncredited): Peter Jackson
- Elf Warrior (uncredited): Gareth Jensen
- Elf Warrior / Uruk-hai (uncredited): Sam Kelly
- Rohan Soldier (uncredited): Richard Knowles
- Elven Warrior (uncredited): Sandro Kopp
- Orc Pitmaster (uncredited): Sam La Hood
- Rohan Guard (uncredited): Don Langridge
- Wildman (uncredited): Michael Lawrence
- Rohan Recruit (uncredited): Alan Lee
- Twilight Ringwraith (archive footage) (uncredited): Jono Manks
- Witch-king (archive footage) (uncredited): Brent McIntyre
- Rohan Woman (uncredited): Dra McKay
- Uruk-hai / Gondorian Soldier (uncredited): Joseph Mika-Hunt
- Haradrim Warrior / Ranger / Uruk-hai (uncredited): Dean Morganty
- Rohan Boy Recruit (uncredited): Henry Mortensen
- Elf / Gondorian Soldier / Orc / Uruk-hai (uncredited): Francis Mountjoy
- Easterling (uncredited): Paul Norell
- Rock-throwing Rohan Soldier (uncredited): Barrie M. Osborne
- Uruk-hai (uncredited): Allan Poppleton
- Fighting Elf (uncredited): Gareth Reeves
- Rohan Refugee (uncredited): Miranda Rivers
- Tree-cutting Orc (uncredited): Campbell Rousselle
- Gondorian Soldier (uncredited): Matthew Saville
- Rohan Refugee / Elf (uncredited): Samuel E. Shore
- Dead Marshes Elf (uncredited): Allan Smith
- Conscripting Rohan Soldier (uncredited): Greg Tozer
- Uruk-hai Warrior (uncredited): Piripi Waretini
- Uruk-hai (uncredited): Tim Wong
- Stable Hand (uncredited): John Wraight
- Rohan Refugee (uncredited): Kelley Kerr Young
- Uruk-hai (uncredited): Robert Young
,
- Producer: Barrie M. Osborne
- Original Music Composer: Howard Shore
- Sound Re-Recording Mixer: Christopher Boyes
- Producer: Peter Jackson
- Executive Producer: Bob Weinstein
- Executive Producer: Harvey Weinstein
- Executive Producer: Mark Ordesky
- Executive Producer: Michael Lynne
- Novel: J.R.R. Tolkien
- Producer: Fran Walsh
- Screenplay: Philippa Boyens
- Director of Photography: Andrew Lesnie
- Production Design: Grant Major
- Art Direction: Joe Bleakley
- Art Direction: Philip Ivey
- Art Direction: Rob Outterside
- Art Direction: Mark Robins
- Conceptual Design: Alan Lee
- Conceptual Design: John Howe
- Costume Design: Ngila Dickson
- Costume Design: Richard Taylor
- Casting: Victoria Burrows
- Casting: John Hubbard
- Casting: Liz Mullane
- Stunts: Sala Baker
- Supervising Art Director: Dan Hennah
- Editor: Michael Horton
- Additional Editor: Jabez Olssen
- Sound Effects Editor: Brent Burge
- Sound Designer: David Farmer
- Executive Producer: Robert Shaye
- Sound Effects Editor: Kyrsten Mate
- Assistant Art Director: Jules Cook
- Visual Effects Supervisor: Jim Berney
- Makeup Artist: Jeremy Woodhead
- Screenplay: Stephen Sinclair
- Makeup Artist: Rick Findlater
- Casting: Ann Robinson
- Makeup Artist: Margaret Aston
- Makeup Artist: Noreen Wilkie
- Makeup Artist: Janine Schneider
- Visual Effects Art Director: Paul Lasaine
- Casting: Amy Hubbard
- Sound Effects Editor: John McKay
- Visual Effects Producer: Charlie McClellan
- Visual Effects Supervisor: Dean Lyon
- Supervising Sound Editor: Ethan van der Ryn
- Sound Re-Recording Mixer: Michael Semanick
- Visual Effects Producer: John Clinton
- Visual Effects Director: Alex Funke
- 3D Supervisor: Guy Williams
- Supervising Sound Editor: Mike Hopkins
- Sound Effects Editor: Dave Whitehead
- Sound Re-Recording Mixer: Michael Hedges
- Visual Effects Supervisor: Joe Letteri
- Visual Effects Designer: Christian Rivers
- Sound Effects Editor: Hayden Collow
- Additional Sound Re-Recording Mixer: Gary Summers
- Visual Effects Supervisor: Jim Rygiel
- Stunts: Sean Button
- Visual Effects Producer: Eileen Moran
- Animation Supervisor: Randall William Cook
- Animation: Shane Prigmore
- Makeup Artist: Nancy Hennah
- Makeup Artist: Catherine Maguire
- Compositors: Roger Huynh
- Co-Producer: Rick Porras
- Makeup Artist: Angela Mooar
- Makeup Artist: Gail Wilson
- Set Costumer: Samantha Morley
- Makeup Artist: Davina Lamont
- Visual Effects Producer: Dean Wright
- Sound Recordist: Ken Saville
- Sound Effects Editor: Craig Tomlinson
- Assistant Art Director: Jacqui Allen
- Visual Effects Art Director: Jeremy Bennett
- Production Sound Mixer: Hammond Peek
- Makeup Artist: Vivienne MacGillicuddy
- Sound Recordist: Malcolm Cromie
- Assistant Art Director: Ross McGarva
- Sculptor: Daniel Falconer
- Makeup Artist: Kerryn Flewell-Smith
- Makeup Artist: Steve Hopgood
- Makeup Artist: Mark Kinaston-Smith
- Makeup Artist: Emma Moncrieff
- Makeup Artist: Allie Rutherford
- Makeup Artist: Lenore Stewart
- Makeup Artist: Tanya Travis
- Makeup Artist: Tera Treanor
- Makeup Artist: Laurelle Ziento
- Visual Effects Producer: Robyn Isaacs
- Sculptor: Jamie Beswarick
Credits: TheMovieDb.