Yes, yes. It’s Been a While. We’re going to hop right into it. We are going to do a full review on Ant-Man through the various iterations (and the various people taking on the role as well). Let’s start with the Original.
Hank Pym: The original Ant-Man. First appearing in Tales to Astonish #27 (January 1962), it was supposed to be a stand-alone Science-Fiction story (called “The Man in the Ant Hill”). He is a genius level intellect, and scientist. One of his 3 biggest/most known moments was when he discovered Pym Particles (these particles that can be manipulated to grow or shrink objects and/or people). Using these particles he became a whole slew of heroes (Giant-Man, Goliath, Ant-man, Yellowjacket), along with his one-time wife Janet Van Dyne (Wasp). His second major moment was the creation of Ultron. This big bad, has nearly destroyed the world (multiple times), created his perfect Vision (the now hero Vision) and has been more than a handful for anyone who fights him. Also, Ultron got his own MCU movie (though in here he was created by Bruce Banner and Tony Stark). His third big moment (though a dark spot that has haunted him ever since) was the infamous moment where he beat his wife. The comic itself was intended to have him raise his hands in exasperation accidentally hitting her (not knowing she was behind him). The artist drew the panel as him turning around and fully backhanding her, they couldn’t redraw the panel as it was to go to press the next day. It became a huge focal point that many writers have focused on. Though he isn’t the only “wife-beater” in the Marvel Universe (I’m looking at you Peter Parker/Spider-Man and Reed Richards/Mr. Fantastic), but he is the one who gets the label stuck on him. In comics him and Janet Van Dyne divorced, and have slowly become friends again. In the MCU he is a supporting character of the (second) Ant-Man, Scott Lang.
Scott Lang: The second Ant-Man made his Marvel Universe debut in Avengers #181 (March 1979). He is an electronics expert, and (now reformed) small time thief. While serving his first sentence in prison, he further studied electronics, and received a job with Stark International installing security on Avengers Mansion after being released from prison (3 years after being paroled for good behavior). He came into the Ant-Man suit after stealing it from Dr. Hank Pym in an attempt to save his daughter Cassie Lang (he needed money for hospital bills due to her having a heart condition, with the American health care system being rather, well, lackluster). The only doctor who could save his daughter was kidnapped by the person who owned the business he was robbing, so he turned a slightly heroic leaf and rescued the doctor. He did intend on returning the Ant-Man suit to Pym, but Hank (being a genius and such) already knew it was stolen, and had figured out why Scott stole it. He told Scott Lang to keep the suit, but use it to uphold the law. He shortly became a hero, frequently helping Iron Man, Spider Man, the Avengers and the Fantastic Four. His career had been depressing though, as his daughter died (got resurrected) and then kidnapped, along with having been killed himself (and then retconned via Scarlet Witch doing that thing where she brings dead characters back to life). In the MCU it is the Scott Lang version of Ant Man they use, and he is portrayed by Paul Rudd.
Eric O’Grady: The one (well technically the third), the only, the Irredeemable Ant-Man. His first appearance was in Irredeemable Ant-Man #1 (2006). As I’m sure you can tell from the title (“Irredeemable”), he is a man of low moral standards. He is more than willing to lie, cheat and steal to get ahead in life (which was rough for him as a low level S.H.I.E.L.D. agent). He found a new incarnation of Hank Pym’s Ant-Man Armour which he immediately steals so that he could commit crimes and use his status as a “Hero” (since people recognize Ant-Man) to stalk women. As is the trend with the various Ant-Man characters, there is that tortured battle between his evil side and good side which ultimately leads him to becoming a proper hero. A noticeable characteristic with Eric O’Grady is that he is a complete coward, who will run from any fight he can that appears to be a challenge. He has also fought Scott Lang’s daughter Cassie (under her hero name Stature) and Hank Pym after getting caught telling a bunch of lies about Scott Lang (such as hiding in womans changerooms to spy on Ms. Marvel, or lying about being an Avenger, both false to Scott Lang, but true for Eric). He has a child with another S.H.I.E.L.D. who he has abandoned (since he doesn’t believe he would be a good father, the whole lying, cheating and stealing thing). As part of the Initiative he started training a new generation of heroes, and then the Skrull Invasion happened. With which he cowered and shrank to escape a fight, and ended up finding a secret plan to transport the USA into the negative zone. He told that information to other Initiative members and earned an invitation to join The Thunderbolts. He earns a true Heroes death in a mission against The Father while protecting a child. There is a Life Model Decoy of himwho works for The Father known as The Black Ant.
Chris McCarthy: The fourth character to don the Ant Man armor (Technically the third, but his tenure was so brief it doesn’t really count), his first appearance in Marvel was also Irredeemable Ant-Man #1 (2006), He was originally a guard (along side O’Grady), he had stolen the armor before O’Grady, and shrank down in size. HYDRA attacked the helicarrier they were on, and he got crushed and changed back to normal size. O’Grady stole the suit off of him.