Kingdom Hearts 3.5: Return of the Heartless Emperor

Kingdom Hearts 3.5: Return of the Heartless Emperor is a spin-off that begins after Kingdom Hearts 3 ReMIND.

Plot
During the search for Sora, Riku, Aqua, Terra, Ventus, Roxas, Xion, Lea, Isa, Donald and Goofy discussed on what they found on the whereabouts of where Sora is, but so far, they found nothing. But then, a call from Chip and Dale came in. Chip anxiously explained about a mysterious evil Heartless Emperor destined to plunge at least 5 worlds into his dark will and kidnap the sleeping Kairi so he'll make her his new bride. It's up to the warriors of light to stop the Heartless Emperor and save both Kairi and the 5 worlds altogether.

Cast

 * David Gallagher as Riku
 * Alyson Stoner as Xion
 * Quinton Flynn as Lea/Axel
 * Kirk Thornton as Isa
 * Jason Dohring as Terra
 * Willa Holland as Aqua
 * Jesse McCarthey as Ventus and Roxas
 * Tony Anselmo as Donald Duck
 * Bill Farmer as Goofy
 * Tress MacNeill as Chip and Daisy Duck
 * Corey Burton as Dale and Ansem the Wise
 * Tom Kane as Xephantom the Heartless Emperor
 * Kevin Michael Richardson as Xargon the Heartless Dragon General
 * Elizabeth Daily as Xykobra the Heartless Anaconda General
 * Keith Silverstein as Xigaro the Heartless Hyena General
 * Jonathan Adams as Xevion the Heartless Hippo General
 * Robbie Daymond as Xurvel the Heartless Weasel General
 * Erin Fitzgerald as Xombra the Heartless Panther General
 * David Lodge as Vigor the Master of Castle Ravin
 * Erika Harlacher as Lux the Lost Princess of Light