The original and most well-known incarnation, Kl'rt, created by Stan Lee and Jack Kirby, first appeared in Fantastic Four #18 (September 1963), and has been depicted as both a supervillain and an antihero.

The Super-Skrull retained his shapeshifting and hypnotic abilities, and was sent to Earth to defeat the Fantastic Four and pave the way for a new Skrull Empire invasion.

[11] The Super-Skrull is the Empire's agent on Earth during the Kree–Skrull War; he temporarily disbands the Avengers and kidnaps Mar-Vell, the Scarlet Witch and Quicksilver.

Sasquatch is initially defeated by the Super-Skrull but tricks him, converting him into a stream of dissociated particles and sending him back into deep space.

[15] The Super-Skrull, later freed by the Silver Surfer, discovers that his cancer is in remission, apparently due to a temporal anomaly that reverted his cellular makeup to its precancerous state.

[16] Kl'rt is freed from the Van Allen belt and cured of cancer by the sorcerer Master Khan,[17] and used against Iron Fist.

Khan brainwashes the Super-Skrull into believing that he is Bobby Wright, a twelve-year-old boy who acquires superhuman powers and a terminal disease from exposure to an alien spore.

[21] Kl'rt joins Ronan the Accuser and Zak-Del to reclaim the Kree home world from a Phalanx invasion,[22] during which Praxagora is killed by Ultron.

[26] To repay the Avengers' efforts in the war and attain glory, Kl'rt accompanies Alliance forces to Earth to free it from occupation by Thanos and they liberate the Peak.

[27] After his victory in the war against the Builders, Kl'rt is crowned emperor of the reborn Skrull Empire as the alien race is settled on the planet Tarnax II.

While Amadeus Cho's Hulk form was fighting the Warlord, the Super-Skrull unearthed the Time Stone and plans to use it to restore the Skrull Empire to its former glory.

He also possesses mind control via eye contact, is an accomplished combatant, a competent starship pilot, talented impersonator, and highly trained in the martial applications of his powers.

[37] In the "Heroes Reborn" universe created by Franklin Richards, the Super-Skrull masquerades as Wyatt Wingfoot, tricks Doctor Doom into capturing the Silver Surfer, and steals Galactus's powers.

His abilities, superpowers and darker personality traits remain in Rogue as the latter joins Cyclops's Brotherhood of Evil Mutants.

In an alternate timeline, created when the Fantastic Four attempt to undo the accident that gave them their powers, their teleportation experiments allowed them to contact seemingly benevolent Skrulls, who manipulate them as part of their plan to use Earth's technology to further their conquests.