The flexible molecules that comprise Morph's body are able to split and fuse back together, allowing him to survive injuries such as dismemberment. However, this process takes time and becomes more ardurous when Morph is recovering from a burn wound or damage imposed by radiation. Additionally, the substance that makes up his physical composition is odorless and emits no scent, making it impossible to track him.

As a child, the jovial Morph was always able to hide his shape-shifting abilities, thus allowing him to live a very well adjusted life free of scorn . However, after his mother passed away from lung cancer when he was thirteen, his father insisted that his son take a more serious approach to life. The effect this had on the youth was the exact opposite of what his father intended. The more stoic his father got, the more ridiculous Morph got building him into the uncontrollable bag of childish reflexes we know today. When he was discovered by Charles Xavier and brought to his School for Gifted Youngsters, Morph took to training his abilities with an enthusiasm and humor that both ingratiated and annoyed. He began as a New Mutant, then an X-Man, and moved on to be one of Earth's Mightiest Heroes as an Avenger. However, he would eventually come home to rejoining the team that is also his family, the X-Men.

During a battle with a druid villain named Stonehenge, Morph found himself transported to the middle of a barren desert alongside five other X-Men from five different realities. They were greeted by the Timebroker, a construct of their collective consciousness, who explained to them that they had all become unhinged from time as a chain of events had caused their realities as they knew it to change. New events in Morph's past caused Morph to become injured battling the Morlocks while still with the New Mutants. Ever since, his physical composition was disrupted and Morph remains comatose in liquid form resting within a beaker in the lab of Hank McCoy, the X-Man called Beast. In order to return to their correct timelines, they would have to repair other realities that caused the ripple effect that disrupted their reality or they would return to their alternate existences.

When Sunfire joined the team after the Exiles lost a member for the first time, Morph aided Mariko in adjusting chaotic lifestyle by helping her see the lighter side of every situation. The two formed a close relationship and Morph began to develop stronger feelings for Sunfire outside of friendship. In time, Mariko would reveal to Morph that she was a lesbian and had hesitated to tell him of her sexual orientation because she had a hunch about how he felt for her and didn't want to hurt his feelings. Morph took the news amazingly well, reacting in a sensible manner and they would continue the best platonic relationship within the team.

After an adventure that pit the team against a mystical, spell-wielding sorceress Callisto, the Exiles were plucked from their reality-hopping affairs by Mojo, the evil dictator of the unique Mojoverse where television ratings determine who rules the planet. Mojo had brought the Exiles to Mojoverse to steal Morph away from their ranks and have the metamorph star in his own television show. When Mojo took Morph hostage, Nocturne was inadvertantly captured alongside the shape-shifter and was also brought back to Mojo's base of operations. Although Morph initially refused to jump through hoops for Mojo, his decision was eventually won over when Mojo revealed that they had been brutally torturing Nocturne. T.J. was kept locked inside of an isolated cell while the Morph Show became the #1 sensation in all of the Mojoverse, recieving the highest ratings in over a hundred years.

Morph would try to escape numerous times daily, but would always ultimately be incarcerated once more as the Mojo star was under heavy watch. Luckily, Nocturne would free herself from imprisonment by tricking a guard into unlocking her inhibitor collar. Taking possession of the guard's body, T.J. would find Morph inside the Morph Show's green room and, once united, the two made a run for it, only to be stopped dead in their tracks by Mojo. During this confrontation, the normally merry Morph exploded with rage. Driven by the disgust and fury at the millions of innocents that Mojo had maimed, twisted, tortured, raped, and killed, Morph was set to kill the ruler of Mojoverse when the Timebroker stepped in and brought things to a halt. By bringing the Exiles to the Mojoverse, Mojo has tampered with time. Morph killing Mojo would just complicate things further. A morose Morph apologizes to Nocturne for causing her suffering, but Talia assured him that none of it was his fault. Either way, Morph is discouraged and wants to go home.

Despite what one might gather from his juvenile mannerism and antics, Morph is far from foolish. He graduated from a university with a master's degree in computer engineering and his intellectual abilities have come in handy to get the Exiles out of a bind on numerous occasions. When the team faced the Galactus, Morph was the only capapble of operating a Skrull Laser Satellite and his familiarity with alien technology was what allowed Earth's heroes to devise a plan to stop the World Devourer.

Morph would flex his brain power again on a planet overrun by an evolved version of the Legacy Virus. When the Avengers were left only to explore apocalyptic resolution to their plight, Morph had an idea to have Rachel Summers contact the Asgardians. Using the healing properties of their blood, Hank Pym was able to devise a vaccine.

When the Exiles visited a world where they took part in the maiden voyage of the Fantastic Four, things took a sudden turn for the worse as Mimic had hidden from his teammates the fact that he had been infected with a Brood egg on the last alternate reality he visited while separated from the team. Due to the strain from injuries suffered while battling the Thing, the Brood Queen egg was able to slowly take him over and, once fully transformed, would allow him to inject living beings with eggs to create even more Brood drones. Eventually, the Exiles and Fantastic Four were able to formulate a sedative that brought the Mimic-Alien hybrid to a comatose state, enabling his Healing Factor to attack the embryo.

Once Mimic regains complete control of his facilities and things appear to have settled down again, Morph finds Sunfire beneath some rubble. She died trying to save a crowd of people from a building that had been destroyed by Mimic while he was being controlled by the Brood embryo. Because she had expended so much energy fighting Mimic, she was not able to disintegrate all of the crumbling building and was buried alive beneath the debris. An enraged and extremely upset Morph calls Mimic a coward for not killing himself and instead coming back to them with a monster inside his body.

After completing the mission in their next reality, Morph recovers and finds the Timebroker before him. He tells Morph that his reality has been repaired and he can go home. However, Morph does not want to leave as he views his teammates as his family now. The Timebroker decides to allow Morph to stay with the Exiles and promises to keep this conversation a secret between the two of them. Morph apologizes to Mimic, telling him that this life they live can make them do things they never ordinarily would. He knows that Sunfire's death wasn't Mimic's fault and it was an accident.

616)

Mainstream Universe In our reality, Morph was the mutant shape-changer known as Changeling. On Professor Charles Xavier's request, he impersonated the Professor while the real Xavier went into seclusion to prepare to repel the forthcoming attempt by the alien Z'nox to conquer Earth. He later died in defeating Grotesk, the lone survivor of a subterranean race, who sought to destroy the Earth. The voodoo practitioner called the Black Talon later resurrected the Changeling as a zombie and forced him to serve in a team of other mutant zombies called the X-Humed. However, after the Black Talon was defeated by the She-Hulk, the Changeling once again became truly dead.