Marvel X Tekken is a suggested crossover with said franchises (Marvel and Tekken) that could air on Disney XD. This could occur if Disney were to acquire the following Tekken characters: Lili Rochefort, Eddy Gordo, Christie Monteiro, Asuka Kazama, Kuma, Roger, Roger Jr., Alex, and Sebastian; while the rest (such as Jin Kazama, Kazuya Mishima, Heihachi Mishima, Ling Xiaoyu, Hworang, Panda, and Alisa) remain in Namco (Michelle, Julia, King, Armor King, Craig Marduk, Bob, and Ganryu would be acquired by Dreamworks).
It will be the first Disney-owned medium to feature Tekken characters. However, the Tekken productions would not be released under the Disney banner until their standalone spin-off series.
- Spider-Man/Peter Parker (voiced by Robbie Draymond) is the leader of the Marvel superheroes and the entire team.
- Captain America
- Iron Man/Tony Stark (voiced by Robert Downey Jr.)
- Hulk/Bruce Banner
- Spider-Lili/Lili Rochefort (voiced by Olivia Holt) is the richest of all the Tekken fighters. She resides in a huge mansion in Monaco and enjoys her spare time teaching herself stunts and making tea. Though slightly bratty, she is optimistic, kind, sweet, energetic, intelligent, cheerful, graceful, and comical. Lili has a huge heart of gold as such she occasionally invites her fellow team member to join her for tea time. Her Spider outfit resembles that of Spider-Gwen/Gwen Stacy's but with a slightly longer hood due to her long hair, a protective skirt, and red different markings in contrast to Gwen's.
- Capoiero/Eddy Gordo (Lateef Crowder)
- Capoierita/Christie Monteiro (Kelly Overton)
- Jean Grey/Pheonix
- Rocket Raccoon
- Spider-Gwen/Gwen Stacy
- Human Torch
- Invisible Woman
- Spider-Girl/Mayday Parker (voiced by Olivia Holt) is Spider-Man's teenage daughter.
- Cloak and Dagger/Tyone Johnson and Tandy Bowen (voiced by Aubrey Joseph and Olivia Holt respectively) are a duo who control darkness and light respectively.
- Bruce Irvin
- Sebastian is Lili Rochefort's butler.
- Doctor Octopus
- Power Arms/Asuka Kazama (voiced GK Bowes) is Spider-Lili's rival.
- Utility Belt Spider-Girl/Petra Parker (voiced by Sadie Stanley) is a female genderbend of Spider-Man who is initially rivals but later friends with Spider-Man. As her name suggests, she sports a utility belt which actually makes her more powerful than in Ultimate Spider-Man.
- Mr. Rochefort (voiced by Mark Holt) is Lili's father, like his voice actor, Mark, is the father of Olivia Holt.