Morph (X-Men: The Animated Series)

Morph is a fictional superhero appearing in the American animated superhero series X-Men: The Animated Series—which aired on Fox Kids from 1992 to 1997—and its revival X-Men '97, which has been streaming on Disney+ since 2024. Morph is introduced as an X-Men member who sacrificed themself to protect Wolverine from a Sentinel in the show's premiere. The second season revealed that Mister Sinister resurrected and experimented on Morph, turning them into his minion. After the X-Men free Morph from Sinister's control, they are taken to Muir Island to recuperate. Morph briefly rejoins the X-Men in season four, but realizing they still suffer from mental trauma, they decide to depart. Morph permanently rejoins the X-Men in X-Men '97, with the first season exploring their trauma following Sinister's experimentations and their romantic feelings for Wolverine.

Morph is loosely based on the minor character Changeling, who briefly joined the team in the comics. During development of The Animated Series, the showrunners wanted an X-Man to die in the premiere to foreground the cartoon's serious tone. They initially chose to assign this fate to Thunderbird; however, upon realizing the implications of killing their only Native American character, they replaced him with Changeling. While Morph's death was supposed to be permanent, they were brought back due to their popularity with audiences. With limited storylines involving Changeling to draw from the comics, writing for Morph proved difficult for the writers. X-Men '97 sees Morph discovering their gender identity as a core aspect of their character arc, being depicted as non-binary; a decision crew members of the original series described as aligning with their vision of the character.

Despite their few appearances in X-Men: The Animated Series, Morph became a fan favorite. Discussions regarding have focused on their death as unprecedented for a children's program of the time. Critics responded positively to Morph's storylines following their resurrection and the depiction of their mental trauma from these events. Their portrayal as non-binary in X-Men '97 has been praised by critics.