Black Widow
Natasha was born in Stalingrad (now Volgograd), Russian SFSR, USSR. The first and best-known Black Widow is a Russian agent trained as a spy, martial artist, and sniper, and outfitted with an arsenal of high-tech weaponry, including a pair of wrist-mounted energy weapons dubbed her "Widow's Bite".
Wonder Woman
Wonder Woman is the princess Diana, the daughter of Hippolyta, Queen of the Amazons and Zeus, the mightiest of the Gods of Olympus. Diana volunteered to leave behind her home of Themyscira and champion the Amazons' message of peace, fighting for justice and equality in Man's World. She is a founding member of the Justice League.
Captain Marvel
Carol Susan Jane Danvers is a former United States Air Force pilot who, upon being exposed to the energy of the Tesseract via the destruction of the Light-Speed Engine, obtained cosmic powers. She was made into a Kree-human hybrid via the blood transfusion from Yon-Rogg, while having all of her old memories removed, turning her into the Kree's weapon and a member of Starforce.
Scarlet Witch
Although much of the Scarlet Witch’s true origins remain elusive to her thanks to manipulations by others, she can still recall her early days as a child with her twin brother Pietro. The two lived on Wundagore Mountain in Eastern Europe, believing themselves born as mutants to a Romani couple named the Maximoffs.
Star Fire
Starfire is actually Princess Koriand'r of the fictional planet Tamaran in the Vega system, and was in line to rule the planet as queen. Komand'r (also known as Blackfire), her older sister, developed a bitter rivalry with her after suffering a disease in infancy that robbed her of the ability to harness solar energy to allow her to fly, and by extension, her right to the throne.