Scott Lang was born and raised in Coral Gables, Florida, the son of Bob Lang. He later became an electronic engineer and met and married Peggy Rae. Together they had a daughter Cassandra "Cassie" Lang. Although he was an electronics expert he could not support his family doing repair work, so he turned his talents to burglary. Apprehended, he served his prison sentence and was paroled for good behavior. During his time in prison, however, Peggy divorced him. Lang had furthered his studies of electronics while in prison and was soon hired by Stark International to work in its design department.
When his daughter Cassie was diagnosed as having a serious congenital heart condition, Lang sought the aid of surgeon Dr. Erica Sondheim. Desperate to help his daughter, Lang decided to return to thievery. Breaking into the New Jersey home of Dr. Henry Pym, Lang stole Ant-Man's Suit. Unknown to him, Pym observed the theft and in his guise as Yellowjacket, followed Lang, curious to see what use he would put the paraphernalia.
Garbed as Ant-Man, Lang broke into Cross and discovered Dr. Sondheim was held prisoner by Darren Cross, president of CTE, who needed Sondheim to correct his own heart condition. Rescuing Sondheim and defeating Cross, Lang was relieved when Sondheim was able to save the life of his daughter. Lang intended to return the Ant-Man costume to its owner and turn himself in, but Henry Pym offered to let him keep them, provided Lang put them to lawful use.
Tony Stark recruited Scott to find out who Justin Hammer really is. When Dr. Bruce Banner asked Iron Man to help him either be cured or killed. They design a nuclear-powered regulator that would allow him to control his heart beat preventing transformations into the Hulk. Scott Lang and Erica Sondheim successfully implant the device in Banner's chest. After exposing Banner to the emotional overlord inducement generator they are convinced that the regulator will keep the Hulk reigned in from now on. However, this was not the case. Tony, Scott, and Sondheim restrained Banner's transformation, ending with Sondheim's use of sound waves to return Banner to normal. Iron Man directs Sondheim to remove the regulator from the Hulk's chest before he wakes up. Unfortunately, Stark is dealing with his own health crisis, leading Scott to shrink into the Iron Man armor in order to save Tony's life.
He then met the Fantastic Four, and with them first journeyed to a "micro-world," and battled there alongside the Thing. He encountered Rick Jones and Alpha Flight, and then fought Dire Wraiths alongside Rom and Brandy Clark.
When the Masters of Evil took control of the Avengers Mansion and captured some of the current team; Lang was instrumental in helping the Wasp defeat the Absorbing Man and Titania, two villains much stronger and more powerful than them. The pair attacked a hospital in an attempt to kill a comatose Hercules 
At the Tomorrow Exposition, techno-thieves break in to steal the Quark machine. With the expo closed, Scott shrinks down as Ant-Man to take a private tour, but his gas apparently also works on Spidey who shrinks to insect size. As the thieves attack a guard, Spider-Man battles a spider. Ant-Man stops the thieves from stealing the Quark field generator's circuit board while Spidey destroys the attacking automatic insect eradicator. Ant-Man enlarges and escapes with the circuit board but is slowed by a magnesium flare. Spidey battles the robot guard dog while Ant-Man summons an army of ants to stop the thieves. Spidey stumbles across the fracas and helps, webbing the thieves up. As the police arrive, Ant-Man takes Spidey to a secluded spot to re-enlarge him, but fails. Spidey is stuck the way he is. While still trapped in his shrunken size Spider-Man and Scott battled the Scarlet Beetle.
When Stark International was bought out by Stane International, Lang resigned out of respect to Tony Stark, the company's former head (and secretly Iron Man.) Lang opened his own electronics business. Later, he temporarily gave up the business to be hired by the Fantastic Four when their scientist and leader Reed Richards was missing for an extended period. Lang and Cassie lived at the Four's headquarters during this time.
When Tony Stark discovered that Justin Hammer had stolen his Iron Man technology and provided it to Force and other villains, Stark hired Lang to hack into the computers at Transcorp in order to find out to whom Hammer had sold or supplied that technology. Lang physically infiltrated the Transcorp computers as Ant-Man, and had to fend off an automated pest-control system before successfully transmitting the data to Stark.
Heroes for Hire
Lang continued to aid his superpowered colleagues as needed, such as joining other Avengers associates in infiltrating the base of the Avengers' enemies of the Triune Understanding, although this turned out to be a ruse by the Triunes to discredit the Avengers. He also helped the Avengers against the threat of the villain Kang the Conqueror, who nearly succeeded in conquering the world. After overthrowing Kang's would-be regime, the Avengers offered Lang a place on the roster, and he agreed.
Scott dated Jessica Jones, the super-heroine named Jewel who left to become a private investigator. He assisted her in a matter with Mattie Franklin, one of the many female heroes to take the Spider-Woman identity. Assisting the duo is S.H.I.E.L.D. agent Clay Quartermain. Their relationship ended when she revealed that she was pregnant with Luke Cage's baby.
Jack of Hearts
Lang's place with the Avengers was not without its personal struggles. Scott was brought into court for a custody battle with his ex-wife over the safety of his daughter Cassie when she visited the Avengers Mansion headquarters of the team. Lang also struggled with his new teammate Jack of Hearts, as the two often clashed over trifling matters. However, when Lang's daughter was randomly kidnapped by a madman, Jack of Hearts rescued Cassie at the risk of his own powers consuming him, which ultimately killed him.
Lang felt guilty that he had only begun to reconcile with his new friend. Later, Jack of Hearts somehow returned to the Mansion with a message of warning for the team. When Lang reached out to his friend, Jack of Hearts detonated himself, taking half of the Avengers Mansion and seemingly Scott Lang with him. This attack was later discovered to be motivated by the Scarlet Witch, whose mind had become unhinged due to the magical powers she constantly felt forced to control. Whether this was truly the corpse of Jack of Hearts or just a magical construct of the Scarlet Witch remains unclear.
Cassie subsequently becomes Stature as a member of the Young Avengers, having apparently taken enough Pym Particles over the years to enable her to automatically grow and shrink in size whenever she wants. Ant-Man's Helmet fell into Amadeus Cho's possession for a time. He wore it with Cassie's blessing, choosing to focus on the insect mind-controlling abilities.
A few years later, the Young Avengers traveled back in time with an amnesiac Scarlet Witch to the moments before Avengers Mansion was destroyed and escaped along with Lang, leaving the Avengers of that time to believe he had perished. This celebration was short lived however, after Lang witnessed the death of his daughter Stature in battle with Doctor Doom. Lang then swore vengeance on Doom.
The Future Foundation would soon be left in the hands of Scott, after Reed discovered that the cosmic energy that gave him is powers was decaying, forcing him and the rest of the Fantastic Four to visit another universe in order to fix the problem. Scott was left with She-Hulk, Medusa, and Johnny Storm's current girlfriend, Darla Deering, to be the replacement Fantastic Four for what was supposed to only be approximately four minutes, unless something went wrong, which of course it did. He later defeated Doctor Doom, and when the Fantastic Four returned, he left the team.
Following the murder of Uatu the Watcher, Scott was chosen alongside Black Panther, Winter Soldier, Emma Frost, Gamora, the Punisher, and Doctor Strange as one of the potential candidates to replace the original Nick Fury in his role as the defender of Earth. He and the others attempted to stop Fury after he was revealed to be the Watcher's true murderer.
Ant-Man Security Solutions
As a consequence of a magic spell gone wrong, Doctor Doom's moral compass was temporarily inverted. In an attempt to atone for killing Cassie, he chaneled the Scarlet Witch's powers and used them to resurrect Scott's daughter. She turned out alive and well on Scott's doorstep. With Cassie returned, Scott tried to adjust his life, and got the job of Head of Security at Stark Industries. However, after Cassie moved with her mother Peggy to Miami, Scott ditched his new job in favor of spending more time with his daughter (against Peggy's will and without her knowledge). As part of his new life, Scott opened a business called Ant-Man Security Solutions. Scott battled Grizzly who wanted revenge on Ant-Man due to his betrayal during the Siege of Asgard, unaware he was not Eric O'Grady. After the misunderstanding was cleared, Lang offered Grizzly a place at his new company.
Trouble followed Scott and his family after Cassie was abducted by Cross Technological Enterprises. With the help of Grizzly's friend from Villains Anonymous, the Machinesmith, Ant-Man infiltrated Cross Technologies and fought his way to Darren Cross, whom Dr. Sondheim was blackmailed into reviving using Cassie's heart. Darren engaged in combat against Ant-Man while the hero tried to buy time for Sondheim to transplant another heart into Cassie.
After Cross was forced to flee when the Pym Particles now in his body caused him to shrink down, Scott shrunk down to microscopic size, and was guided by Sondheim to attack Cassie's white cells and allow her body to accept the new heart's tissue. Even though the procedure was difficult, Scott was finally able to help Cassie survive the experience. When Peggy and Blake arrived, Sondheim told her that Cassie had suffered an infraction and Scott took Cassie to her, which they believed. Although he saved his daughter, Scott decided to distance himself from her so that she could have a normal life.
Scott couldn't resist the urge to accompany her daughter, and started stalking her while in miniature size, something that enraged Cassie after Scott confessed his behavior, and led her to resent her father even more than when she simply believed he had distanced from her. Cassie's increasing frustration prompted her to enlist in a mobile app developed by the Power Broker called Hench that facilitated anybody a supervillain career, with the intention to shut it down from the inside. However, Power Broker's revelation of the truth behind Cassie's latest health problem ensured her collaboration in infiltrating Cross Technologies as Stinger, in order to shut down Cross' own app, a copy and rival of Hench called Lackey.
Once he learned of Cassie's whereabouts, Ant-Man assembled a group of supervillains, including his casual romantic partner the Beetle, to break into Cross Technological to prevent her from falling into Cross' clutches. The rescue mission was successful, but the police were alerted of the intrusion. In order to protect Cassie, Scott took the blame for the situation and was arrested.
Scott faced court, and he was represented by She-Hulk. However, the prosecutor was Janice Lincoln, the civilian identity Beetle, who held a grudge against Scott for having failed to use their sporadic relationship to gain access to Pym Particles. Lincoln managed to put Scott in a tight spot by using her knowledge on Scott's break in plan and manipulating every witness account to her favor. The trial was interrupted by the appearance of Darren Cross, now donning a stolen Yellowjacket Armor, who wanted to have revenge on Ant-Man for the injuries his son Augustine sustained during Scott's mission to rescue Cassie from them. Even though Scott and his allies fell to Yellowjacket's power, Stinger managed to defeat him by forcing him to ingest the Pym Particle-neutralizing pills that Scott had been taken while incarcerated. The trial resumed, and the surprising testimony of Peggy Rae turned the tide in Scott's favor, allowing him to walk away as a free man. Even though Scott's business was shut down, having forged a new relationship with both Cassie and Peggy allowed him to begin a new lease on life, with his daughter joining him in his adventures, together as Ant-Man and Stinger.
When Hydra took over the United States under the leadership of an alternate-timeline version of Captain America, Scott forced Cassie to take refuge in France while he joined the American resistance group known as the Underground. Unfortunately, Hydra's forces got hold of Cassie, and used her as leverage to force Scott to become a mole.
After joining Iron Man's efforts to recover the pieces of the Cosmic Cube that was used to shift Captain America's allegiance in order to bring him back to normal, Ant-Man tipped off Hydra when the heroes returned from their journey with two shards, resulting in Hydra launching an attack against the Underground's base in The Mount. Scott immediately came clean, being ridden of guilt despite his best interests being Cassie's safety. Ant-Man would later redeem himself, playing a key role in the defeat of the evil Captain America by using Pym Particles to help the Winter Soldier reach into the rebuilt Cosmic Cube in the hands of Hydra at the subatomic level.
Still ashamed by his actions during Hydra's empire, Ant-Man stowed away on the ship of the Guardians of the Galaxy while the intergalactic heroes were visiting Earth in hopes to leave the planet with them. The Guardians found him out, but welcomed him on board.
Pym Particles: Ant-Man carried a supply of Pym Particles in his belt, allowing him to reduce himself to the size of an ant, approximately one-half inch in height, by means of a rare group of sub-atomic particles, the source of which is as yet unknown, which he is able to contain in magnetic-field "canisters" (the shape of the magnetic lines of force were made visible by the confined particles, whose concentration caused them to behave like a gas).
- These particles, whose wavelength is in the mental range when released, allow Ant-Man to will himself and other objects to reduce in size or enlarge. The mechanics involved having most of the mass of the nucleus of each affected atom convert into energetic particles which take up orbit around the nucleus - thus, although gravitation do not affect these particles, the mass of the original volume remains intact.
- This means a punch delivered by the half-inch high Ant-Man would feel like the blow of a normal-sized man. Ant-Man's reducing particle has no time limit to its potency.
Electrical Engineer: Scott has a masters degree in electrical engineering.
Master Thief: Scott is a skilled thief, even before gaining the Ant-Man suit he was able to infiltrate and hack advanced security systems.
- Ant-Man's Helmet: Ant-Man also wore a cybernetic helmet designed by Henry Pym permitting him rudimentary communication and control of insects, allowing him to lead hundreds of ants to overwhelm any single opponent. He could broadcast to a range of about one mile (1.6 km), depending on the materials surrounding him. His helmet also contained sound amplification equipment which also shifted the frequency of his voice so that he could be heard by normal-sized humans despite his diminutive size, as well as providing its own oxygen supply.
Ant-Man's Wrist Gauntlets Ant-Man's wrist gauntlets enabled him to fire bio-electric blasts of adjustable force. His original helmet was able to fire 'disruptor' blasts of concussive force that Lang said were less powerful than the stings of The Wasp.
- Wanting to devote more time to his daughter, Ant-Man turned down membership offers from both the Avengers and Fantastic Four, though he eventually accepted Avengers membership.
- Ant-Man's costume for Ant-Man was designed by Chris Samnee.
- Scott's early appearances are reprinted in various comics.
- In Peter Parker: The Spectacular Spider-Man #1, Ant-Man's helmet was reconfigured so its default height for Scott was an inch taller than before.
- Roughly a decade before Peggy Rae was introduced in Avengers (Vol. 3) #62, Lang's co-creators David Michelinie and Bob Layton planned to reveal that Iron Man's girlfriend Rae LaCoste was Scott Lang's ex-wife. Furthermore, LaCoste would also have become the villain Madame Masque.
- 306 appearance(s) of Scott Lang (Earth-616)
- 15 appearance(s) in handbook(s) of Scott Lang (Earth-616)
- 41 minor appearance(s) of Scott Lang (Earth-616)
- 59 mention(s) of Scott Lang (Earth-616)
- 10 mention(s) in handbook(s) of Scott Lang (Earth-616)
- 381 image(s) of Scott Lang (Earth-616)
- 35 quotation(s) by or about Scott Lang (Earth-616)
- 5 item(s) used/owned by Scott Lang (Earth-616)