Phineas voice actor Vincent Martella would “love” a Phineas and Ferb world in Kingdom Hearts IV

Vincent Martella, the voice of Phineas Flynn, says he would “love” to see Phineas and Ferb get a world in Kingdom Hearts IV. The comment came in an interview with The Movie Dweeb, who pitched the idea to Martella, so this is an actor's wish, not an announcement and not a report that anything is happening. TheGamer covered the exchange on October 3.

Martella went further than a yes-or-no answer. He suggested Phineas and Ferb could build gadgets to help Sora out and help him reach new areas (something like a new Chip and Dale) and floated Phineas wielding the Keyblade at some point. OtakuKart corroborates the Keyblade detail in its own write-up of the same interview.

For context: Coco remains the only officially confirmed Disney world for Kingdom Hearts IV, which is aimed at a late-2027 window, and the series has historically drawn its worlds from feature films rather than TV series. Martella, meanwhile, already has a foot in both camps: he also voices Hope Estheim in Final Fantasy XIII, per his Wikipedia credits. A fun quote to file under “what if,” and nothing more until Square Enix says otherwise.