The Untold Truth Of Marvel's Sharon Carter

Sharon Carter isn't the first Agent 13: Her aunt Margaret "Peggy" Carter holds that distinction. During her time as Agent 13, Peggy fights in the French resistance, falls in love with Captain America, and takes on the first iteration of HYDRA. 

Peggy is heartbroken when Cap disappears. Eventually, however, she recovers and works for various spy agencies, becomes a doctor, and eventually joins S.H.I.E.L.D. Her older brother Harrison welcomes a daughter named Sharon, and they become very close – Peggy ends up becoming Sharon's hero, in fact. Having grown up dazzled by tales of her aunt's wartime exploits, Sharon decides to join S.H.I.E.L.D. and even adopts her aunt's Agent 13 codename. 

For a time, Peggy watches over Sharon. Then, as depicted in a dramatic storyline from 1973, Peggy relapses into grief for Cap and is put into an asylum. She's so delusional that she imagines Sharon to be her kid sister, and Harrison to be her father. This strange detour is, as you might have guessed, a retcon that had to be executed because of the increasing time lag between World War II and the modern era. It turns out that Peggy is being manipulated by Doctor Faustus, but Cap rescues her and she snaps out of her delirium. Cap eventually has to let her know they can never be together, but he leaves out the part about him dating Sharon.

Both Captain America and Sharon Carter flirt with retirement on multiple occasions so that they might be together. Cap is the first to consider this, when they're first reunited. He even plans to propose to her. Then he sees a whole lot of idiots dressing up as Cap in order to replace him, and he realizes that he can't hang the shield up just yet. 

Cap tries to get Sharon to quit on multiple occasions. At first, she's resistant, but she later agrees to take an inactive role with S.H.I.E.L.D. that puts her on the sidelines. Coincidentally, this happens when Cap first starts partnering up with the Falcon. Later, Sharon regains her full-time role with S.H.I.E.L.D., as Nick Fury claims her PhD in metaphysical psychology makes her too valuable an agent to lose. Sharon is later put in charge of an all-women cadre of S.H.I.E.L.D. agents called the Femme Force: Fury shows off their training to President Richard Nixon himself.

There is a brief moment where Sharon has enough of S.H.I.E.L.D. and finally quits to be with Cap. Not long after, Cap defeats the Secret Empire and learns it's headed by a high-ranking government official. He's so disillusioned, he quits his role as Captain America. When Hawkeye talks Steve into becoming a new kind of hero, Sharon is less than enthusiastic. As she well knows, this choice puts an end to their one chance at an idyllic life together.

Sharon's death doesn't stick. She's eventually revealed to have been assigned a deep cover mission in Europe — but something went wrong. She gets completely cut off from S.H.I.E.L.D. and ends up behind enemy lines. It takes her years to make it out, all while Captain America is sure that she's dead. 

At this point in comics canon, the super-solider serum has begun to take a toll on Cap's body: He's taken to wearing armor to keep himself propped up. Just as he's about to die, Sharon and a team whisk away his body and give him a total blood transfusion from the only other person with the serum running through his veins: Red Skull. The Skull has been inhabiting a clone of Cap's body for years, and he arranges the rescue because he needs Cap to retrieve the Cosmic Cube. 

The Cube is being held by a group of fanatics from AIM called the Kubekult, a group Sharon has infiltrated. She puts the Cube in Cap's hands, because she knows he'll make the right decisions. Cap gets trapped in the Cube with Adolf Hitler, but he triumphs, escapes, and defeats the Skull. Thus, the on-again, off-again relationship between Cap and Sharon goes back to being on. Granted, Sharon is resentful that Cap never went after her, but he tells her to direct that anger toward S.H.I.E.L.D. 

After the long conflict between Steve Rogers and Tony Stark that makes up the infamous "Civil War" arc finally ends, Captain America decides to end the bloodshed by surrendering. On his way to his trial, he's gunned down by a sniper. Someone else fires three more shots into his gut. Sinthia "Sin" Schmidt, daughter of the Red Skull, corners a frantic Sharon in a hospital bathroom shortly after news of Cap's death hits the public. With a sinister smile on her face, she tells Sharon Doctor Faustus has a message for her: "Remember." 

Sharon realizes, to her horror, that she has killed Captain America. All of this mess, it turns out, is part of an elaborate brainwashing scheme perpetrated by the Red Skull and Doctor Faustus. They psychically installed a deeply hidden subconscious trigger in Sharon's mind, and used her to seemingly kill Cap. Thankfully, it turns out Cap was merely displaced in time, and Sharon gets Hank Pym and Reed Richards to bring him back. Shortly afterward, Sharon realizes that she's pregnant with Steve's baby. The Skull has big plans for the kid, but Sharon ultimately miscarries when she gets stabbed by Sin.

In one of the weirdest Cap sagas ever, a mysterious subway car arrives at an abandoned station in New York. Cap gets on but Sharon doesn't, as it only has room for one. Thus, Cap is whisked away to the brutal Dimension Z, an alien reality that Cap's old enemy Arnim Zola, the "bio-fanatic," has conquered. Zola seeks to remove the super-soldier serum from Cap, in order to give it to his children. Oh, and also, Sharon proposes marriage right before this all goes down.

Cap spends the next dozen years trying to survive, raising Zola's son Ian as his own. He creates an alliance with a local tribe of monsters opposed to Zola and eventually leads a rebellion. Sharon manages to track him down, as only 30 minutes have passed on Earth. Though Zola's daughter Jet Black switches sides to help our heroes, Sharon is forced to sacrifice herself to save Cap and the Earth.

However, Sharon isn't dead. She takes over for Cap in Dimension Z and raises Ian as her own son. When she is finally rescued from Dimension Z by the Falcon, she and Steve reunite. For a while, they find peace and happiness together as they coordinate the Avengers, but refrain from going on field missions.

While Sharon Carter has had quite a life in the reality we know as Earth-616, there are thousands of other multiverses and other fates. For example, on Earth-8342, Sharon didn't fake her death at the hands of the National Force. Instead, she settled down with Steve Rogers and had a family. Thirty years later, the aging Red Skull kidnapped Sharon and their two sons, who'd been trying to convince Cap to retire. The Red Skull revealed that he had a son, who killed his father trying to cause an explosion. Cap defused that bomb, and Sharon and the boys gave Cap their blessing to keep going. 

In the Ultimate Universe (also known as Earth-1610), Sharon Carter is a relatively young, red-headed SHIELD agent partnered with Jimmy Woo investigating individuals with unnatural mutations — in other words, people like Spider-Man and his rogues' gallery. She's tough-talking and wisecracking, but she also has a deep moral center. At one point, Spider-Man saved her from the murderous Sandman, and while she tolerated his presence (mostly because Nick Fury said he was off limits), in her debriefing after the incident, she said, "Destroy them and end this!" condemning those who were "playing around with God's plan."

Perhaps the weirdest Sharon of all is Sharon Stewart of Earth-697064, a stand-in for the character who appeared in the 1990 Captain America movie. The daughter of Cap's ex, she fought the Italian Red Skull alongside him.