Alvin and the Chipmunks: World Tour

Alvin and the Chipmunks: World Tour is a 2021 two-part musical comedy film directed by James Bobin. The voice cast includes Justin Long, Christina Applegate, Matthew Gray Gubler, Anna Faris, Jesse McCartney and Kaley Cuoco, who reprise their roles from the previous films. Amy Phoeler voices Alvin's sister Charlene, and Mark Hamill joins the cast as Alvin's father Avery. The film's live action cast includes Jason Lee, Ashley Peldon and Doug Walker in lead roles, and Miriam Margolyes, Andre Meadows, Stephanie Beatriz, Hakeem Kae-Kazim and Viola Davis as minor cast members.

Part 1
In a world which decides to completely screw up the chipmunk timeline, nobody seems to care about the Chipmunks and Chipettes anymore. After getting sick of living like normal people, the Chipmunks hatch a plan to make a comeback in a giant World Tour (because title), but avoid telling Dave to keep him from becoming overprotective. However, Dave does notice that they've gone missing, and sends police commissioner Mindy Carlton and her incompetent detective/sidekick Grant Lewis to find them.

Part 2
After learning he was adopted by Simon and Theodore's parents and meeting his biological father and sister in Australia, Alvin teams up with them and Brittany, who has amnesia, to find the others. Jeanette, Theodore and Eleanor try to find Simon, who has transformed back into Simone and has disappeared. Meanwhile, Mindy and Grant learn that terrorists have infiltrated the police force and seek the help of Dave, who used to be a vigilante before retiring, to help them.

Live Action Cast

 * Jason Lee as Dave Seville, a songwriter and retired vigilante, the chipmunks adoptive father.
 * Ashley Peldon as Mindy Carlton, a detective and the chipmunks parole officer.
 * Doug Walker as Grant Lewis, Mindy's hyperactive partner and a major fan of the chipmunks.
 * Miriam Margolyes as Miss Beatrice Miller, the chipmunks costume designer.
 * Andre Meadows as Carl Lannister, Grant's best friend and a blind hacker.
 * Stephanie Beatriz as Louise Lannister, Carl's sister, Mindy's love interest and the leader of a terrorist group.
 * Viola Davis as Chieftess Nabu, the chieftess of a technologically advanced African tribe.
 * Hakeem Kae-Kazim as Ziyad, the mutinous leader of a technologically advanced African tribe.

Voice Cast

 * Justin Long as Alvin Seville, the leader of the group.
 * Amy Poehler as Charlene, Alvin's easily excitable biological twin sister, with a really bad singing voice.
 * Christina Applegate as Brittany Miller, the leader of the Chipettes who gets amnesia for most of Part 2.
 * Matthew Gray Gubler as Simon Seville, the second smartest member of the group, first being Jeanette.
 * Alan Tudyk as Simone, Simon's French counterpart with enhanced strength and speed.
 * Jesse McCartney as Theodore Seville, the youngest member of the group.
 * Anna Faris as Jeanette Miller, easily the smartest member of the group.
 * Kaley Cuoco as Eleanor Miller, the second youngest member of the group.
 * Kevin Hart as Digger, a gopher who works as a NASCAR commentator.
 * Mark Hamill as Avery, Alvin's and Charlene's biological father.