The Simpsons Movie

Heroes

 * Homer Simpson
 * Marge Simpson
 * Bart Simpson
 * Lisa Simpson
 * Maggie Simpson
 * Little Santa's Helper
 * Milhouse Van Houten
 * Ned Flanders
 * Todd Flanders
 * Rod Flanders
 * Moe Szyslak
 * Lenny Leonard
 * Barney Gumble
 * Carl Carlson
 * Lindsey Naegle
 * Elizabeth Hoover
 * Luann Van Houten
 * Lurleen Lumpkin
 * Helen Lovejoy
 * Cookie Kwan
 * Agnes Skinner
 * Bernice Hibbert
 * Timothy Lovejoy
 * Abraham Simpson
 * Miss Springfield
 * Princess Kashmir
 * Joe Quimby
 * Cletus Spuckler
 * Dr. Julius Hibbert
 * Apu Nahasapeemapetilon
 * Colin
 * Harry Plopper
 * Medicine Woman
 * Nelson Muntz
 * Jimbo Jones
 * Kearney Zzyzwicz
 * Dolph Starbeam
 * Chief Clency Wiggum
 * Ralph Wiggum
 * John  Frink
 * Nick Rivier (Apparent Death)
 * Jessica Lovejoy
 * Judge Constance Harm
 * Kent Brockman's Daughter
 * Manjula Nahasapeemapetilon
 * Martha Quimby
 * Booberella
 * Allison Taylor
 * Mindy Simmons
 * Jasper Beardly
 * Kent Brockman
 * Stephanie Brockman
 * Gil Gunderson
 * Herman Hermann
 * Ruth Powers
 * Laura Powers
 * Fat Tony
 * Waylon Smithers
 * Martin Prince
 * Kirk Van Houten
 * Otto Mann
 * Gary Chalmers
 * Seymour Skinner
 * Edna Krabappel
 * Krusty The Clown
 * Sideshow Mel
 * Becky (It's a Mad, Mad, Mad, Mad Marge)
 * Jeffrey Albertson
 * Dewey Largo
 * Duffman
 * Jaques
 * Gloria Jailbird
 * Titania
 * Astrid Weller
 * Crazy Cat Lady
 * Bumblebee Man

Villains

 * Russ Cargill
 * Charles Montgomery Burns

Trivia
This movie is set after Season 18.