Updated on 16 October, 2021
Mockingbird was a fictional super hero appearing in American comic books printed by Marvel Comics in many issues throughout the years. Mockingbird first appears in Astonishing Tales # 6 in 1971 as a minor supporting character and possible love interest of Ka-zar. In the series, she is revealed to be an experienced military and spy who is trained in tracking various terrorists. Later, she becomes a valued member of S.H.I.E.L.D..
Mockingbird was a close friend of Peter Parker, who first made her acquaintance when she served as an intern with the Spider-Man posing as his girlfriend, J.J. Isiah. In the rare occasion that she is seen without her mask, she has blue eyes. Mockingbird's skills as an agent were demonstrated during numerous encounters with supervillains such as The Leader, Flashings, Dr. Curtaders, The Vibrancy, Vulture, The Red Baron and The Leader. She continually tries to prevent further terrorist acts by assisting in many different ways.
In the Homecoming issue, written by Brian Bendis, Mockingbird is revealed to have memory chips placed within her head by Hoke. These memory chips gave her super strength and the ability to project powerful energy blasts from her wrists. After taking control of a plane in which the Fantastic Four were being held captive, she threatens to blow up the plane unless the Fantastic Four give her their information. The Fantastic Four help her escape.
In the Secret Wars series, written by Brian Bendis and drawn by John Romano, Mockingbird returns as one of Doom's allies against Magneto. She was captured by the enemy and was subjected to a variety of medical treatments. One of these treatments left her in a coma. She subsequently underwent a massive mental breakdown and began taking crystal glass pills. She developed amnesia and could no longer remember much of what had happened during her time as an ally to Magneto.
In the Secret Invasion series, written by Tom Wheeler and drawn by Various, Mockingbird was shown to still be part of the Fantastic Four. She participated in several battles against the New Invaders, though she was only seen once shooting down an Skrull soldier. She later helped in the Battle of New York. However, she was badly burned on the thigh when Doctor Doom accidentally turned the city into a cosmic dumpster. Mockingbird was presumed dead at this point, but she was saved by the X-Men when she was able to mentally recognize Charles Xavier and send him to Earth. The X-Men discovered that she was in fact alive, and went to rescue her.
In the Ultimate universe, Mockingbird was the leader of a group of X-Men that visited the Savage Land. She attempted to turn the planet into a place in which humans and mutant monsters could coexist, but was foiled by Wolverine, whom she attacked head on. In the Omega storyline, Mockingbird was one of the many X-Men that were mutated into evil beings when their ship was boarded by the Avengers.
Recently, in the New York comic book series, the character was mentioned as having undergone a mental breakdown due to the trauma of witnessing the murder of her loved-ones. She was taken under the care of Professor X, and was returned to life as a biological human. She returned to her past life and tried to kill Cyclops, only to be defeated by Jean Grey. Finally, Jean Grey telepathically gave Mockingbird a mental command to attack Cable, who was trying to prevent another Skrull attack on New York.
Wolverine has Mockingbird's respect, though he considers her to be an annoyance. Cyclops views Mockingbird as someone whose attitude is always Negative. During an encounter with the X-Men, Mockingbird nearly killed Wolverine, and Cyclops ordered a missile strike on Ulysses Island to destroy her. As a member of the X-Men, she continues to battle villains, and assist them in defeating Magneto and other Sentinel robots.