Host: Jon Stewart (Host)
Performer: Kristin Chenoweth (Performer of Nominated Song)
Performer: Luis Conte (Performer of Nominated Song)
Performer: Glen Hansard (Performer of Nominated Song; Award Winner)
Performer: Impact Repertory Theatre (Performer of Nominated Song)
Performer: Marketa Irglova (Performer of Nominated Song; Award Winner)
Performer: Jon McLaughlin (Performer of Nominated Song)
Performer: Jamia Simone Nash (Performer of Nominated Song)
Performer: Marion Saunders (Performer of Nominated Song)
Performer: Total Praise Community Choir (Performer of Nominated Song)
Self: Jan Aaris (Participant in Filmed Specialty Segment)
Self: Amy Adams (Award Presenter; Performer of Nominated Song)
Self: Jessica Alba (Introduction of "Scientific and Technical Awards" Recap Film Package; Appearance in "Scientific and Technical Awards" Recap Film Package)
Self: Jan Archibald (Award Winner)
Self: Alan Arkin (Award Presenter)
Self: Javier Bardem (Award Winner)
Self: Michael Bay (Participant in Filmed Specialty Segment)
Self: Brad Bird (Participant in Filmed Specialty Segment; Award Winner)
Self: Cate Blanchett (Award Presenter)
Self: Robert Boyle (Special Award Recipient)
Self: Josh Brolin (Award Presenter)
Self: James L. Brooks (Participant in Filmed Specialty Segment)
Self: Alexandra Byrne (Award Winner)
Self: Steve Carell (Award Presenter)
Self: George Clooney (Introduction of Film Specialty Segment)
Self: Diablo Cody (Award Winner)
Self: Ethan Coen (Award Winner (Multiple))
Self: Joel Coen (Award Winner (Multiple))
Self: Alexandria Corneiro (Participant in Filmed Specialty Segment)
Self: Marion Cotillard (Award Winner)
Self: Penélope Cruz (Award Presenter)
Self: Miley Cyrus (Introduction of Performance)
Self: Daniel Day-Lewis (Award Winner)
Self: Ruby Dee (Participant in Filmed Specialty Segment)
Self: Patrick Dempsey (Introduction of Performance)
Self: Cameron Diaz (Award Presenter)
Self: Michael Douglas (Participant in Filmed Specialty Segment)
Self: John Dykstra (Participant in Filmed Specialty Segment)
Self: Robert Elswit (Award Winner)
Self: Colin Farrell (Introduction of Performance)
Self: Dante Ferretti (Award Winner)
Self: Michael Fink (Award Winner)
Self: Harrison Ford (Award Presenter)
Self: Kirk Francis (Award Winner)
Self: Sid Ganis (Participant in Filmed Specialty Segment)
Self: Jennifer Garner (Award Presenter)
Self: Alex Gibney (Award Winner)
Self: David A. Grafton (Appearance in "Scientific and Technical Awards" Recap Film Package)
Self: Per Hallberg (Award Winner)
Self: Tom Hanks (Award Presenter)
Self: Anne Hathaway (Award Presenter)
Self: Katherine Heigl (Award Presenter)
Self: Charles Highland (Participant in Filmed Specialty Segment)
Self: Jonah Hill (Award Presenter)
Self: Jennifer Hudson (Award Presenter)
Self: Elton John (Participant in Filmed Specialty Segment)
Self: Dwayne Johnson (Award Presenter)
Self: Nicole Kidman (Award Presenter)
Self: Andrea Knudsen (Participant in Filmed Specialty Segment)
Self: Karen Baker Landers (Award Winner)
Self: Didier Lavergne (Award Winner)
Self: Francesca Lo Schiavo (Award Winner)
Self: Dario Marianelli (Award Winner)
Self: Paul Mazursky (Participant in Filmed Specialty Segment)
Self: James McAvoy (Award Presenter)
Self: Scott Millan (Award Winner)
Self: Helen Mirren (Award Presenter)
Self: Alfred Molina (Participant in Filmed Specialty Segment)
Self: Ben Morris (Award Winner)
Self: Jack Nicholson (Introduction of Film Specialty Segment)
Self: Eva Orner (Award Winner)
Self: David Parker (Award Winner)
Self: Antonio Perez (Appearance in "Scientific and Technical Awards" Recap Film Package)
Self: Sidney Poitier (Participant in Filmed Specialty Segment)
Self: Philippe Pollet-Villard (Award Winner)
Self: Seth Rogen (Award Presenter)
Self: Vanessa Roth (Award Winner)
Self: Christopher Rouse (Award Winner)
Self: Scott Rudin (Award Winner)
Self: Keri Russell (Introduction of Performance)
Self: Stefan Ruzowitzky (Award Acceptor)
Self: Ari Sandel (Participant in Filmed Specialty Segment)
Self: Martin Scorsese (Award Presenter)
Self: Susannah Shipman (Appearance with Award Winner(s) On Stage)
Self: Joseph Smith (Participant in Filmed Specialty Segment)
Self: Steven Spielberg (Participant in Filmed Specialty Segment)
Self: Barbra Streisand (Participant in Filmed Specialty Segment)
Self: Hilary Swank (Introduction of "In Memoriam" Film Package)
Self: Tilda Swinton (Award Winner)
Self: Suzie Templeton (Award Winner)
Self: Kenji Thuloweit (Participant in Filmed Specialty Segment)
Self: John Travolta (Award Presenter; Participant in Filmed Specialty Segment)
Self: Cynthia Wade (Award Winner)
Self: Denzel Washington (Award Presenter)
Self: Hugh Welchman (Award Winner)
Self: Bill Westenhofer (Award Winner)
Self: Forest Whitaker (Award Presenter)
Self: Curtis Williamson (Participant in Filmed Specialty Segment)
Self: Owen Wilson (Award Presenter)
Self: Trevor Wood (Award Winner)
Self: Renée Zellweger (Award Presenter)
Self: Catherine Zeta-Jones (Participant in Filmed Specialty Segment)
Voice: Jerry Seinfeld (Voice of animated character "Barry B. Benson")