Mr. Immortal appeared in the She-Hulk: Attorney at Law Episode 6. The character was portrayed by Craig Hollis. His main slogan and power is Death, Death, Death. Mr. Immortal had ab ability to return to life even after death, which means he will never die.
Mr. Immortal In She-Hulk: Attorney at Law Series

Mr. Immortal had issues with wives and death. When coming to his personal life he had several wives. he fakes his death to avoid the conflict as result he can leave his wife and jump to another life. In episode 6, Immortal shows his powers to Nikki and Amelia by jumping out of the window of a building and surviving. he is embroiled in a legal battle as a result of his superpowers in front of officers Goodman, Lieber, Kurtzberg & Holliway with the help of lawyers Nikki and Amelia.
Who Is Mr. Immortal In Marvel?

Mr. Immortal is the one who had a superhuman ability of immortality. He had the ability to survive death. According to Marvel, Mr. Immortal was killed by Deadpool three times. He was holding a bandolier of grenades when the merc hit detonate, he was straight-up shot and killed, and Deadpool even decapitated him, but Mr. Immortal survived all those attacks. At last, Deadpool was tired and give up on killing him. Mr. Immortal, founding member of the Great Lakes Avengers.
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