In Guardians of the Galaxy Vol. 2, Ego is the father of Star-Lord rather than J'son, with director and writer James Gunn explaining that this change was made due to his dislike of the latter character.
This led Ego to father Star-Lord rather than an accident of love like J'son. Ego first appeared in Guardians of the Galaxy Vol. 2, finally finding his son. The two came into conflict after it was revealed Ego killed Meredith Quill to avoid becoming attached to her.
After Ego dies and Quill loses his Celestial powers, he is rescued from the planet's destruction by Yondu, who reveals himself as an adopted father to Quill. In space, Yondu gives Quill the last space suit, sacrificing his life to save him.
Peter's last name comes from his step-father, Jake Quill in the comics, but in the films, he gets his last name from his mother, as there is no implications that Meredith married another manl.
Peter Quill's father in Marvel Comics. Marvel Comics has two versions of Star-Lord's father. One is Jason of Spartax and the other is Emperor J'Son of Spartax. Beyond just names, there are other differences between the two characters.
In Guardians of the Galaxy Vol. 2, Ego is the father of Star-Lord rather than J'son, with director and writer James Gunn explaining that this change was made due to his dislike of the latter character.
Mantis is an empathic insectoid individual who is the biological daughter of Ego the Living Planet and the paternal half-sister of Peter Quill. She chose to betray her father by informing the Guardians of the Galaxy of his plans to use his son, Peter Quill, to destroy worlds with his Expansion.
Quill had left Earth behind when he became the new Emperor of Spartax and protected the galaxy as Star-Lord. He married L'ssa after he took the throne, and they had two children named Meredith and Jason after Quill's parents.
He unexpectedly fell in love with one such woman, the Earthling Meredith Quill. Fearing she would distract him from his true mission, Ego caused her to develop a fatal brain tumor and then left her to raise the product of their relationship, their son Peter, by herself.
While that may technically be true, it wasn't until the holiday special came out that fans learned the full story. Mantis is actually Peter's half-sister. As it turns out, Mantis is one of the many children Ego created on his quest for power.
All of this is to say that Ego the Living Planet would destroy Thanos in most instances. While it is possible that Thanos could find a way to gain the upper-hand on Ego, especially if he has the Infinity Gauntlet or a Cosmic Cube, Ego would win in, let's say, statistical most instances of this fight.
Celestials like Ego are categorized as a highly-intelligent ancient race of entities with god-like power. Ego figured out how to manipulate matter and energy around him, which he used to create his own planet as well as a humanoid form that would explore the cosmos.
Ego appears in media set in the Marvel Cinematic Universe, portrayed by Kurt Russell. This version is the biological father of Peter Quill and Mantis and claims to be a Celestial.
Chris Pratt portrays Peter Quill / Star-Lord in media set in the Marvel Cinematic Universe. This version is the son of Ego the Living Planet and the half-brother of Mantis, and additionally inherited Celestial abilities from Ego before losing them following his death.
Klementieff was born in Quebec City, Canada, to a Korean mother, Yu Ri Park, and Russian-French father Alexis Klementieff, who was working there as a consul with the government of France.
Mantis appears in media set in the Marvel Cinematic Universe (MCU), portrayed by Pom Klementieff. This version is the daughter of Ego the Living Planet and half-sister of Peter Quill who initially serves the former before helping to stop him and joining the Guardians of the Galaxy.
Immortality: Ego, like his race, is immortal and ancient. While giving Star-Lord, Gamora and Drax a tour of his planet, he stated that he was millions of years old. He can only be truly killed if his true form, his brain, is destroyed.
Ego lacks a true body, his "core" being a glowing blue brain that houses his consciousness. Over the course of millions of years, Ego was able to gradually form a planet around himself to protect his core. Ego also desired a body to understand what it meant to be a mortal, and created an avatar of his own design.
She is a member of the Guardians of the Galaxy with empathic powers and is the paternal half-sister of its leader, Peter Quill. Introduced in Guardians of the Galaxy Vol. 2 (2017), she is an alien ward of Ego with the power to control the emotions of people by touch.
This stemmed from his disillusionment over life he encountered, which he considered inferior and not up to his standard of species perfection, which made him consider expanding his own power by transforming the galaxy into extensions of himself and his progeny as the only meaning of his eternal life.
Peter Quill was born on Earth, the son of a human mother and an alien father. Plucked from his rural home, he was thrust into a life of roguery and adventure across the stars.
