John Jameson is the son of newspaper tyrant J. Jonah Jameson. The first time John Jameson met Spider-Man was during one of his first space travels. Indeed, his space ship deviated from his trajectory and it was Spider-Man who succeeded to bring back the command control. Then John Jameson could engage the parachute. John owed his life to Spider-Man. These events made it so that John and Spider-Man got a special friendship in witch the two tried to help one another whenever the could, much to the dislike of John's father J. Jonah Jameson.
John Jameson was created by Stan Lee and Steve Ditko and first appeared in The Amazing Spider-Man #1 (1963).
Mayor Story Arcs
During a space mission, John entered in contact with extraterrestrial spores which contaminated and took over John. He gained a huge force and attacked a Spider-Man wrongly accused of bank robbery. Peter Parker succeeded in bringing Colonel Jameson into an electromagnetic field. John became once again normal and understood that Spider-Man was innocent.
Later, John was selected to go on a secret mission to the moon. While on the moon he collected lunar rocks including a red crystal gemstone. John started to wear this gemstone around his neck as an souvenir. This gemstone would transform John into a wolf-like state during a full moon. The newspapers, including his father's, dubbed him the Man-Wolf. As the Man-Wolf, John had many confrontations with Spider-Man and other heroes including She-Hulk.
During his escape, John fought Kraven The Hunter and also Hate Monger. With the help of the SHIELD, he stopped Hate Monger. John decided to give himself up to the SHIELD. Nick Fury proposed to acquit John if only he went to a communication station in orbit in order to check the breakdown. He accepted, went and discovered that the station was controlled by space warriors. These warriors came from an Other Realm, an extra dimensional world where the gemstone came.
He learned that the gem is the creation of Stargod, a god who wanted to transmit his powers to a successor. He learned also that a tyrant Arisen Tyrk took the control of the Other Realm. John decided to go inside this extra dimensional world where he stayed the Man-Wolf with John’s mind. He fought Arisen Tyrk and beat him. He came back to earth, but the malediction was still working. So John returned to the Other Realm for a rescue mission.
With Captain America
When he returned to Earth, he learned that the gemstone poisoned his organism. His father decided to cryogen John until he found a remedy. But Alistair Smythe broke the Man-Wolf free and controlled him to destroy J.J. Jameson and Spider-Man. Peter succeeded to take off the gem one more time. John fell inside the Hudson River. John Jameson reappeared and accepted to be treated by Lizard with a biomagnetic solution. He was healed, but very feeble. After his remission, he became successively Captain America’s pilot, bounty hunter and security chief at Institute Ravencroft.
John became associated with Jennifer Walters, better known as the She-Hulk and became part of her surrounding cast while she was a superhero and an advocate. The two started dating for some time.
John briefly lost side of his other persona, the Wolf-Man, when a strange villain named Stegron created an atmosphere that let animals go insane with rage. Other then John Jameson was Doctor Curt Conners, whom became the Lizard. The Wolf-Man however took over from John, but became stuck in the body of John himself. He endangered Spider-man, Curt Conners, his son, as well as Peter Parker's wife Mary Jane and aunt May. Luckily, Spider-Man intervened and stopped Stegron before John could do anyone any harm. He then quickly got his own persona back and resumed his life.
During the Civil War, John has registered himself as Man-Wolf, but also helps Captain America's Secret Avengers. He was also dating She-Hulk at the time. When they got married in Las Vegas, he suddenly turned into Man-Wolf and after going into a rampage he turned back into Stargod. When She-Hulk discovered that her feelings for John was influenced by Starfox. Because of this, Jennifer filed for annulment, but John admitted that his love for her is genuine and has nothing to do with Starfox's powers. Jennifer rejected this and John finally sign the annulment papers, dissolving their marriage.
John Jameson is trained in unarmed fighting and various weapons and is also a skilled pilot and astronaut. The Man-Wolf, possesses superhuman strength, agility, hearing, sight, speed, stamina, smell, claws and has a healing factor. The Stargod is basically the Man-Wolf with enhanced abilities. Recently, he can now voluntarily changed from human to Man-Wolf form and he could also tapped into Stargod's power while being Man-Wolf.
For a short time John served as host to the Carnage symbiote, and had the same powers as Carnage, but the alien left him in favor of bonding with Ben Reilly (Scarlet Spider)
Earth X (Earth-9997)
John Jameson now lives on the moon and is the father of Jay Jameson.
What If? (Earth- 78327)
He would be bitten by a spider that would be irradiated during the demonstration and be walked off. Later he would discover that the spider bite would endow him with the proportionate abilities of a spider. to become "Spider-Jameson, the super-astronaut" and take up crime fighting. John would become an instant success, however he would meet his end when attempting to save an out of control space capsule, and sacrifice his life so that the astronaut inside could live.
House of M (Earth-58163)
Instead of Johnny Storm being on the spaceship, it was John who piloted the ship, with Reed, Susan and Ben onboard. All of them died when they got bombarded with cosmic energy, save for Ben, who lost his mind and became the Thing-like creature called the It.
John is married to Dr. Ashley Kafka and they have a son named Jack. Jack became the costumed superhero called The Buzz.
Ultimate Universe (Earth-1610)
J. Jonah Jameson made no reference his son being John, only he referred him as a "true hero." JJJ said that his son died when his space shuttle burned up in orbit, although details about it have been classified.
In Other Media
Spider-Man the Animated Series
Spectacular Spider-Man (Animated Series)
John Jameson appeared as an Air Force Colonel who flew a space shuttle.
In "Catalysts" he went to dinner with his father to celebrate him going into space when Green Goblin appeared and planted a bomb in the restaurant then Spider-Man showed up. John then realizes where the bomb was planted and Spider-Man throws it into the river.
Later he goes into space and returns back with a strange substance on the bottom of his ship. In "Growing Pains" he comes in contact with spores from the substance found on the ship. He then grows and develops superhuman strength and speed and took the alias Colonel Jupiter. He then grew angry at Spider-Man (Venom impersonator) when he destroyed his home and Colonel Jupiter went on a rampage until Spider-Man used electricity to kill the spores inside John. He then went insane with power and went to a mental hospital.
He is voiced by Daran Norris.