Alter Ego/ Other Names : James Buchanan Barnes , Bucky , Captain America
Special Powers : Skilled acrobat, fighter, scout, and assassin; Superhuman strength derived from cybernetic arm; Vibranium-steel alloy shield
Origins Based On : 2005’s Captain America #8 to #14
Bucy Barnes was a fellow soldier working along Steve Rogers (Captain America) . Eventually became side-kick to Captain America , their run together ended in 1945 near the end of the World War II, When Bucky failed to defuse a bomb onboard plane. He was believed to be killed but he was rolled into freezing waters of the north Atlantic and preserved his suspended animation before being found by a Russian submarine crew, brought on board frozen solid and missing an arm he was place in cold storage and taken to Moscow assuming he had injected with a super soldier formula like Captain America . Russian scientist revived him with stolen Nazi technology, doing so they realized that he had suffered brain damage and amnesia . Discovering that he did not contain the super soldier formula they decided to put him back to freezing state until they found use for him. After 9 years in 1954 the Russian special section department X decided to continue to work on him , starting with attaching a cybernetic arm, which was the start of Russians Winter Soldier program to use him against their enemies. By brain washing him he was made a loyal Russian agent and given extensive field training. Given code name the Winter Soldier he was used in many assassinations which were never traced back to Russians.
After serving three years his mind was deteriorated in attempt of filling the memory gaps of his past life, resulted in rebel against his programming abd disobeying direct orders. In the light of this events Department X decided to keep him in between states and given the new brainwashing every time he was reactivated. In 1988 the project was decommissioned and he was again put in the state. Recovered intel revealed his identity and existence to Captain America.
He was then revived again and made serve in the Krone’s corporation, the Winter Soldier was now assigned to safe guard the cosmic cube from the Avengers, this caused him to come face to face with his old friend in an all out brawl. Captain used the cube’s energy to restored Bucky’s memory. With his memory restored his first act was to destroy the troublesome cube before disappearing in an attempt to piece his life back together eventually he returned to take on the role of new Captain America.
Special Powers : Artificial intelligence with robotic body; abilities vary with each redesign but generally include extreme durability and energy projection
Origins Based On : 1968’s The Avengers #54 & #55; further expanded upon The Avengers #57 & #58
When Ultron was first introduce, it was mysteriously disguised as leader of Masters of Evil , referring to him self as Crimson Cowl. He bribed the Avengers’ butler Jarvis and gained the information about Avengers layer. As his minions captured the Avengers ,the Crimson Crowl’s robot identity was revealed . Then it was revealed that in fact Jarvis was behind all this , but after that it was revealed that originally Jarvis was under mind control and actually Ultron was behind all this .Ridding him self from the disguise Ultron 5 the living automaton itself and ordered its man to kill Jarvis now that he had served his purposed . But Jarvis some how survived in order to tell what happened to a hero called Black Knight , and he must save the team who were being held within an H-bomb meant to blow up Manhattan . After freeing the team together they stopped the bomb and discover that Ultron was not there an watching all this from the secondary location. After his plan was foiled Ultron pledged to find other ways to kill the Avengers team.
In the wake of this events the amnesiac mysterious andriod known as Vision began to recall his own origins . As it turned out he was crated by Ultron 5 to destroy his new found friends (Avengers) ,during the fight with his comrades Vision struggled to regain control of his base program . When he decided to confront Ultron 5 he defeated his creator , as Ultron ran towards him and he phase shifted leading Ultron passing through him and hitting with volatile electrodes , Ultron blew apart . Despite what appeared to be his total destruction Ulron’s head was recovered from the scene . Soon origins of Ultron were finally revealed when Henry Pym decided to search his own back up electronic memory bank , there he discovered something that he somehow forgotten that years before he had created a synthetic life form called Ultron 1, instantly hostile the sentient machine had subdued Pym and decided to eliminate mankind . However instead of killing his creator it erased his memories of event and began upgrading itself . Following this Ultron returned with his surviving head , having used mental control to force vision rebuild him as Ultron 6, a version forged in the invincible metal called adamantium .
Subsequent appearances often saw Ultron evolved several more times .
Alter Ego/Other Name : Wade Winston Wilson , Merc with a Mouth
Special Powers : Regenerative healing factor; Superhuman stamina, agility, flexibility and reflexes; Devices that allow for teleportation and holographic disguise; Carries a magic satchel; Extended longevity; Immunity to telepathy; Master martial artist, swordsman and marksman; Immortality
Origins Based On : 1998’s Deadpool and Death Annual ; 2010’s Deadpool: Wade Wilson’s War ; 2010’s X-men Origins: Deadpool
Born as Wade Wilson, he grew up with his abusive military father . His mother died with a cancer while he was still young . His father was shot dead by his friend . Then he joined the military but it was for the short time as he was kicked out of the service for the bad behavior . Soon after he was diagnosed with cancer and offered a cure in exchange for his participation in a super human enhancement project . Entering in the top secret govt. weapon X program he underwent many procedure , in which one was recreate the natural healing ability using Wolverine’s dna , which failed and leaving him with extensive neurological damage and caused his cancer to overdrive – scaring him to all over his body , so he was labeled as failed experiment and sent to a top secret facility with other failed projects . Where other prisoners took bet on him in dead pool in which inmate would killed next by the warden , in which he was taken to the brink of death before his new found healing abilities activated , remaining scared and mentally unstable he some how gained enough strength and escaped .
As he was unable to live a normal life he became a mercenary for hire calling him self the Deadpool . Due to his neurological damage he fell in to identity disorder and lost his memories of his origin . In time he became expert in many form of martial arts and began wearing a red full body costume select sword as his preferred weapon .
FYI : Deadpool’s character was first created and debuted as a villain in New Mutant #98but later his character was reimagined as an Anti-Hero.
Special Powers : Superhuman strength, stamina, durability, longevity, and intelligence; Energy manipulation; Telekinesis; Teleportation
Origins Based On : 1973’s Iron Man #55 ; 1973’s Captain Marvel #28
Thanos was born on Saturn’s moon Titan & he was a part of ancient race known as Deviants , The deviants are an offshoot of the eternals were a race of perfect god-like beings that were created by 2000 foot tall armored space gods known as The Celestials . As mutants Deviants inherited their god-like powers but lacked their perfect looks and noble spirit . Born to an eternal king Thanos was a prince and one of the few to inherit the Deviant gene despite this his family treated him fairly. However he grew increasingly feared by the peaceful and prosperous civilization in which he lives. Eventually he realize that he is different then other people especially his brother Aeros ( Who later beacame an Avenger under the name Star fox ) .
After realizing he is different then others he became more and more distant . He found an unshakable interests to the opposites of the virtues that the eternal stood for namely nihilism and death . He happened upon the physical embodiment of death who appeared as shadowy mistress . He fell in love with her and became determined to prove his love for death by destroying all life .
His ultimate goal is to gain more and more power for bring death to all the living things and destroy everything which comes between him and death .
Scarlet Witch is daughter of Magneto and twin sister of Quicksilver . She debuted , as mentioned above, in 1964’s Uncanny X-men #4 as the part of Magnetos Evil Mutant Brotherhood . When Magneto was in Europe he fell in love with a woman , who got pregnant but she didn’t tell the Magneto about this because she was afraid that he will get angry and might harm her , so after Magneto left she gave birth to the twins brother and sister . She gave them up to a gipsy family and left . As they grew up their powers grew too . Knowing about this twins Professor Xavier approached to them to join his X-men team but they denied to it. People of the village were unable to understand them and afraid of them as they decided to kill them but as Magneto was searching his long lost love was around and saved them from those people and hence under his debt unknown of the fact that Magneto is their father they joined the Magneto’s Evil Mutant Brotherhood .
After watching the Magneto’s madness to achieve his goal any way possible , on the coast of hurting the innocents they decided to leave the Magneto’s Evil Mutant Brotherhood . And as they do not wanted to be a part of either side X-men, they decided to Join The Avengers so they can do good without getting between X-men .