The character made his live-action debut in the Marvel Cinematic Universe television series She-Hulk: Attorney at Law, played by David Pasquesi.

[citation needed] Its other founding members include Flatman, Doorman, Big Bertha, Dinah Soar and Leather Boy.

[3] Although he is given to fits of rage upon regaining consciousness following otherwise-fatal injuries, his teammate and sometimes lover Dinah Soar can utter vocalizations that can calm him.

On account of his immortality, he often engages in life-endangering stunts, and is invariably willing to take on the deadliest aspects of missions,[citation needed] which he does brazenly, at one point taunting an armed gunman by saying, "All you're threatening me with is death.

In their following outing against Maelstrom, Dinah Soar is killed and Deathurge appears to take her away to the afterlife, truly terminating his and Mr. Immortal's former "friendship".

[10] Craig then falls into a deep depression, repeatedly getting drunk and killing himself inside GLA headquarters while wearing a Dinah Soar "costume", as the others watch.

[11] Mr. Immortal is able to return the favor when Deathurge appears to take away Monkey Joe to the afterlife in the form of a squirrel, leaving him in a vulnerable state.

Deathurge, by taking away some of his loved ones, tried to prepare Mr. Immortal so that he could truly live to that destiny, but this is jeopardized by the supervillain Maelstrom, who threatens to destroy the entire universe.

Later, Mr. Immortal saves Squirrel Girl's new sidekick, Tippy Toe, from Deathurge who was trying to kill her, as part of a test given to him by Oblivion, in order to regain his job.

They are given a rescue mission to save Dionysus after he fell from Mount Olympus and was captured by A.I.M., who plans to use his powers to cause mental instability in all the superheroes they consider a threat.

During the task, Deadpool, who had been recruited as a reserve member by Flatman, ambushes him and Mr. Immortal, and dispatches others who attempt to evict him from the team's headquarters.

While the team relocates to Detroit, Michigan and arrive at their new headquarters, a factory owned by Tony Stark, it is revealed that Mr. Immortal is buried alive at a cemetery.

[21] After the team discovers that Dick Snerd shut them down, Mr. Immortal returns and takes Flatman on patrol, where he expresses a desire to turn his life around.

[22] Returning to HQ, Mr. Immortal and Flatman learn that Bertha and Good Boy brought Dick Snerd (Nain Rogue) hostage.

Although injuries that are sufficiently traumatic appear to kill him at least initially, his regenerative power causes him to return to life in anywhere from ten minutes[4] to seconds.

He has recovered from being shot, suffocated, stabbed, drowned, crushed, starved, dehydrated, exploded, poisoned, decapitated, irradiated, and incinerated.

During Dinah Soar's tenure as his teammate, she could utter a vocalization, inaudible to humans, that could bring him out of this state, which Flatman speculated is hypersonic in nature.

[volume & issue needed] While most mutants' powers manifest at adolescence, Mr. Immortal's ability did not become apparent until he first attempted suicide.