- Mortal Kombat: "A martial arts superstar trained by great masters from around the world, Cage uses his talents on the big screen. He is the current box-office champ and star of such movies as Dragon Fist and Dragon Fist II as well as the award-winning Sudden Violence."
- Mortal Kombat II: "The world was shocked when martial arts movie star Johnny Cage disappeared from the set of his latest film. But in truth, he was following his former ally Liu Kang into the Outworld where he plans to complete in a twisted tournament in which lies the balance of Earth's existence as well as a script for another blockbuster movie."
- Mortal Kombat Trilogy: "Killed in battle with an Outworld extermination squad, Johnny Cage's life came to a tragic end. But the celluloid superstar manages to cheat death when his path to the after life is blocked by the merger of Earth and Outworld. His soul takes possession of his body once again and enables Cage to rejoin his friends to battle for Earth's survival."
- Mortal Kombat 4: "After Shao Kahn's defeat, Cage's soul is free to leave to a higher place. From the heavens, he observes his friends engaged in battle. With the heavens in disarray, he learns of the war waged against the Elder Gods by Shinnok. Cage seeks out Raiden to help him restore his deceased soul and join Liu Kang in his quest. Once again, Johnny Cage finds himself fighting alongside Earth's greatest warriors."
- Deadly Alliance: "Johnny Cage had been fed up with the lame writing on his current movie "Mortal Kombat: The Death of Johnny Cage," in which his character repeatedly died and was resurrected. To him, his real-life adventures were much more sensational... he kicked butt! But his studio felt that the hero needed to take a fall for dramatic purposes. Johnny Cage reluctantly agreed to continue with the project until the Thunder God Raiden called him away to a new adventure in Outworld. For maximum dramatic effect, Johnny Cage arrived on the island fortress of Shang Tsung by way of parachute. He glided to the exact place on the beach where Raiden has told him to rendezvous with the others. When night fell, the Earthrealm kombatants lit a fire and discussed possible strategies to defeat the Outworld threat. Once the fire has reached its full strength, Raiden finally appeared and revealed to them the events that had led to the formation of the Deadly Alliance."
- Bio Kard: "A Hollywood action movie star, Johnny Cage's most important role has been protecting Earthrealm from the forces of Evil. His latest movie, "Mortal Kombat: Deadly Alliance" was based on his battle against Shang Tsung and Quan Chi."
- Shaolin Monks: "Most think of Johnny Cage as nothing than than a glory-seeking Hollywood actor. But there is more to this action star than his contemporaries know: Johnny Cage helped save the world. Now he must face yet another threat to Earthrealm's existence."
- Armageddon: "It used to be, when there was a threat to Earthrealm, that Raiden would rally the Forces of Light to face the enemy in Mortal Kombat. Somehow he could always discover the truth behind the deception. I was one of his allies and fought with him against the Forces of Darkness. In those early days Liu Kang was the point man, he was the star. The rest of us played supporting roles, clearing the way so he could take on the main threat. But times have changed. Raiden has abandoned us. He's become darker, using more ruthless ways to keep the "peace." And Liu Kang was killed. Though his spirit is still around to help us, eventually he'll pass on into the Heavens. It seems like we have no clear leader. We're just not the fighting force we once were. We're scattered all over the realms. Maybe it's because there hasn't been a real threat since we took care of the Dragon King, I don't know. But I can't help but feel uneasy about the future. I used to think, "What if there's a new threat? Who's gonna lead us?" With Raiden gone, how would we even tell when something bad is about to happen? The answer came soon enough. I started having visions of someone we had defeated years ago: I saw the Fallen Elder God Shinnok plotting something and I decided to find out what. In my visions I could see Shinnok in different locations, conjuring these communication portals to give orders, which I couldn't quite understand, to his minions. I followed him, finding each place I saw in my visions, and always there was evidence that he had in fact been there. My visions weren't dreams after all. Shinnok was back! In my last vision, I clearly heard Shinnok say the next place he was going to contact his minion from was Shang Tsung's island fortress. That place has played a big part in the fight between good and evil. It seemed fitting that I would confront Shinnok there. When he finally showed up, I watched him for a while, to try to get some idea as to what he was planning. Was I surprised to see that the "minion" in the portal was Quan Chi! Shinnok ordered him to gather the Forces of Darkness and retake Shao Kahn's fortress in Outworld. When he dismissed the sorcerer, I approached Shinnok. He was startled and immediately conjured up a skeleton hand to trap me. I jumped out of the way and followed with a Green Shadow Kick to the chest. I pummeled him, and he never regained his composure. The coward escaped in a cloud of smoke... a teleport of some kind, I suppose. I seem to have discovered the next great threat to Earthrealm. Now I need to find the others. I'll need their help if I'm going to defeat Shinnok's forces. The fate of Earthrealm depends on me."
Johnny Cage decided to join the Mortal Kombat tournament. He went to the harbor and waited for the ship that would take him to Shang Tsung's island, along with his agent and personal secretary. Both were fearful about his security, and tried to convince him to not attend the tournament. Cage, however, said that no one would even touch him. After he boarded the ship, Cage was harassed by the Black Dragon leader known as Kano and his allies. A fellow Shaolin Monk named Liu Kang managed to help Cage, beating several of the thugs, while the superstar attacked a distracted Kano, knocking him down with a Shadow Kick. After the brawl, Cage and Kang presented each other. Arriving at the island, Cage joined forces with Liu Kang and Sonya, a member of the United States Special Forces, and during the tournament, they became great friends. Johnny, Liu Kang and Sonya formed an alliance to protect Earthrealm and they were mentored by the Thunder God, Raiden. During the final battle between Liu Kang and Shang Tsung, Johnny teamed up with Sonya and Kano to fight Goro near the pit. When Shang Tsung's island fortress began to crumble because of his defeat at the hands of Liu Kang, Raiden saved Johnny and dropped him off at a boat that belonged to the Special Forces Agency near the island. There, he met Major Jackson Briggs and was interrogated by him on the whereabouts of Sonya. Johnny told Jax all about the events on the island, but the major didn't believe him. After Johnny was set free, he made the movie Mortal Kombat, based on his experiences.
Due to a recording from Sonya received by the U.S. Special Forces, Jax realized that Cage's version of the history was true and the Major went to meet with the superstar once more to personally apologize for disbelieving him. Not long after that, Cage was shooting a commercial and was suddenly attacked by a revitalized Shang Tsung, Kintaro, Baraka, Kitana, Mileena, and Jade. At the same time that Jax arrived in the set, Cage was violently blasted trough the wall right in front of him. Jax managed to help him fight against the invaders, taking on the mighty Shokan, Kintaro. They were later joined by the other Earthrealm warriors who helped them fight the horde off. Raiden appeared, put an end to the fight, and Shang Tsung proposed a new Mortal Kombat tournament. Once again, Johnny reunited with his allies to protect Earthrealm, traveling into Outworld. Eventually, Liu Kang challenged Shao Kahn, proving again that he was the true champion of Mortal Kombat; Kang defeated the emperor within inches of his life.
After his defeat at the hands of Liu Kang, Shao Kahn led a massive invasion against Earthrealm in order to take this realm by force. Earthrealm was attacked by Kahn's extermination squad, and during this entire riot, Johnny Cage was killed in a fight against Motaro, leader of Kahn's forces. Cage's soul was unable to ascend to a higher plane of existence, and returned to its body. Cage then became one of the chosen warriors fighting against Kahn's invasion.
After Shao Kahn’s defeat at the hands of Liu Kang, Johnny’s soul was free to leave to a higher place. Johnny watched from the heavens as the events unfolded and the fallen Elder God Shinnok attacked Earthrealm. Johnny Cage sought out Raiden so that he could restore his deceased soul; the restoration of Johnny's soul allowed him to fight alongside the Earthrealm defenders once more and to help defeat Shinnok. After the defeat of Shinnok, it appeared as though Raiden’s revival of Cage was permanent as he did not ascend back to the heavens but instead remained on Earth.
Years later, Johnny Cage went on to film Mortal Kombat: The Death of Johnny Cage, in which he was repeatedly killed and brought back to life. Upset at the way he was being portrayed, believing his own adventures were far more entertaining, he wanted out of the movie but he couldn't due to his contract.
As luck would have it, he was approached by Raiden, who asked him to help fight the Deadly Alliance of Quan Chi and Shang Tsung. Raiden told him to go to Shang Tsung's island for further instructions. He found a loophole in his contract and left the movie. He would then use this new adventure to make his own movie. Arriving on the island by way of parachute, he learned of Liu Kang's death and went to Outworld to help his friends.
Cage was killed during the final assault on the Deadly Alliance (he, Sonya, and Jax were overwhelmed by the Deadly Alliance's Tarkatan warriors besides Kung Lao and Kitana were killed by Shang Tsung and Quan Chi). Soon afterward, he was resurrected by Onaga and made into his slave. Some time later, he was freed from this state by Ermac and the spirit of Liu Kang.
Johnny became disheartened that both Raiden and Liu Kang were unable to unite and lead the Earthrealm warriors. Then, he began to receive visions of Shinnok creating several portals in different realms. He decided to visit these areas to confirm his visions, and sure enough, he found evidence that Shinnok had been there. Deciding to take action, Johnny Cage saw in his visions that Shinnok's next destination was Shang Tsung's island fortress. When he arrived at the island, he saw Shinnok scheming with Quan Chi to take Shao Kahn's fortress by force. When Quan Chi vanished back through the portal which he came through, Johnny Cage attacked. He caught Shinnok off guard and appeared to have the upper hand, until the former Elder God retreated in a cloud of smoke, leaving Johnny to decide what to do next.
Soon after, Cage began gathering many of the good-aligned warriors such as Nightwolf, Sub-Zero and Kenshi to create an army to fight against the Forces of Darkness during the Battle of Armageddon. During the battle, he fights against Darrius and later fights Kano, only to be sent in the path of Shao Kahn's wrath hammer and flying in the air. After the Pyramid of Argus appears, he climbs it, shoving Sonya Blade off the stairs, only to be shoved off by Hsu Hao. The resulting battle killed nearly all fighters present, including Cage, who was decapitated by an unknown opponent.
- Mortal Kombat (Non-Canonical): "Through the battles and life or death situations faced during the Tournament, Johnny Cage learns the true importance of his fighting skills. He also realizes the full potential of the Tournament. He returns to Hollywood after defending his new title as Grand Champion. Cage goes on to film Mortal Kombat: The Movie and its many successful sequels."
- Mortal Kombat II (Non-Canonical): "After disappearing from the set of his latest movie, Cage finally resurfaces. He used all his knowledge and experiences as a fighter to end the Outworld menace. Now heralded as a hero, Cage receives the respect he rightfully deserves. He also gets his inspiration for the sequel to his blockbuster movie, Mortal Kombat. MKII is released and quickly becomes the greatest motion picture event of all time. Cage realizes that MKIII is inevitable."
- Mortal Kombat Trilogy (Non-Canonical): "With his nearly deceased soul restored, Johnny Cage finds himself fighting alongside his friends once again. This time he seeks revenge against the extermination squad that took his life. But during their battle, Cage learns that if they win against Kahn, his soul will again be deceased when Earth reverts back to normal. Knowing this, the movie star embarks on a one way mission to destroy Shao Kahn. His determination fuels his fellow warriors as they embark on one final onslaught against the evil emperor. The Earth warriors emerge victorious and when the realms revert to their normal state, Cage bids farewell to his comrades as his soul leaves to a higher place."
- Mortal Kombat 4 (Non-Canonical):
- (murmurs in an unseen theater audience. Johnny Cage comes on stage with an award in his hand. The crowd cheers.)
- Johnny Cage: Wow! I don't know what to say! I guess I can start by thanking all my fans out there! (more cheers) Well, that's enough of the mushy stuff. I mean, let's get real here, huh? When am I gonna get some real competition? (awkward silence) C'mon! Don't get silent now! Where are the cheers? (crowd starts booing him) Hey, wait a minute! I'm your number one guy! I'm gonna remember this-- (crowd starts throwing things at Johnny) Ow! Okay, now I'm mad-- Hey, c'mon, quit it! Ow! I saw that, Arnold! Hey, cut it out! (Johnny keeps being assaulted by the still-booing crowd)
- (murmurs in an unseen theater audience. Johnny Cage comes on stage with an award in his hand. The crowd cheers.)
- Deadly Alliance (Non-Canonical): "Upset by the way his adventures had been portrayed in the past, Johnny Cage found a loophole in his contract and left MCM studios during the production of "Mortal Kombat: The Death of Johnny Cage". He then used his own money to fund the production of his next movie, which is rumored to be the true story of his latest adventures in Outworld. "Mortal Kombat: Deadly Alliance" broke all records in its first weekend in theaters, and made Johnny Cage extremely wealthy. The movie told the true story of how Johnny Cage single handedly saved the world from the threat of Quan Chi and Shang Tsung's deadly alliance."
- Armageddon (Non-Canonical): "Johnny Cage defeated Blaze, and the power of the gods rushed through him. He gained superior strength and dexterity, but more important, a new insight into his existence. With the help of Shaolin masters, he renounced his superficial former life and became enlightened."