The character was created by writer Otto Binder and artist George Papp as a "mirror image" of Superman, and first appeared in Superboy #68 (1958).

[1] Debuting in the Silver Age of Comic Books (1956 – c. 1970), the character has often been portrayed as an antagonist to Superman, though on occasion he also takes on an antihero role.

68 (published in August; cover-dated October 1958),[2] writer Otto Binder casting the character as a Frankenstein's monster pastiche that possessed all the powers of Superboy.

According to comics historian Mark Evanier, Schwartz long claimed that he originated the Bizarro concept prior to the character's appearance in Superboy.

He was later revived in the "Bizarro's World" serial that ran through the Superman titles in March and April 1994, and in Action Comics Annual #8 in 1996.

The copy, quickly labeled "Bizarro", is a flawed imitation as it possesses chalky white skin and childlike erratic behavior.

[21] Bizarro also temporarily joins the Secret Society of Super Villains to battle the Justice League of America and Captain Comet.

After being empowered by a Phantom Zone sorcerer, Mr. Mxyzptlk destroys Zrfff and causes the Bizarro World to implode, killing all of its inhabitants.

[24] After the events of Crisis on Infinite Earths, Lex Luthor orders his scientific team to create a clone of Superman that was part of "Project Changeling".

Incorrectly starting from the assumption that Superman is a human with metahuman abilities (his alien origin had not yet been revealed), the process results in a flawed copy, which Luthor dismissively refers to as "...this bizarre – Oh, forget it", before ordering for the subject to be disposed of.

The clone survives and, although mute and possessed of only limited intelligence and vague memories of Clark Kent's life, attempts to mimic Superman.

When Lois Lane's sister, who had been blinded in a terrorist attack, is exposed to Bizarro's dust, she regains her sight.

While Superman had not expected this effect, he speculated that Bizarro heard the sister explain her partial recovery and may have deliberately allowed himself to be killed to cure her.

While the Cadmus directors and Dr. Packard discussed what went wrong with S-01 and Westfield's secrecy on the project Scrapper unknowingly leaned on the control panel for S-01's stasis pod causing him to be released.

After breaking free of his stasis pod S-01 rapidly started deteriorating with his skin almost immediately taking on the chalky hue and ridged texture of other Bizarros.

This Bizarro abducted Lex Luthor's baby daughter and intended to send her by rocket to another planet, emulating Kal-El's escape from Krypton.

[35] In Infinite Crisis, Bizarro is tricked into joining the reformed Secret Society of Super Villains by the Flash's foe Zoom.

In a battle with the Freedom Fighters Bizarro accidentally kills the Human Bomb, repeatedly hitting the hero to see the flashes of light that are produced from the kinetic energy of the blows.

[37] Wishing to create a home for himself, Bizarro travels into deep space to a solar system occupied by a blue sun.

[38] Bizarro eventually appears on the planet Throneworld, befriending and aiding Earth hero Adam Strange and allies Prince Gavyn, Captain Comet, and Weird.

[40] Bizarro eventually visits the grave of a deceased Jonathan Kent, and is then sent (by rogue Kryptonians) with other Superman foes to the inter-dimensional prison, the Phantom Zone.

[43] Later, while investigating an object that crashes into a Metropolis park and leaves a massive crystallized crater in its center, Doctor Light and Gangbuster discover a Bizarro-like creature that resembles Supergirl.

Labs, only to be violently knocked unconscious by Supergirl, who then absconds with her doppelgänger and her ship, hoping to stop the Godship and save the Bizarro World.

Instead, he transforms into a hulking white-skinned monster with cryonic vision, incendiary breath, and immunity to Kryptonite which is labeled "Subject A-0".

[50] Though initially doubtful, Luthor grows truly fond of "Bizarro", who proves to be a powerful asset throughout the event.

A clone of Bizarro is found inside of a tube in a train car stolen by Black Mask sometime after the Crime Syndicate of America incident.

Red Hood and Artemis jump aboard the train car attempting to steal a weapon, not expecting it to be a clone of Superman.

[54] Generally, Bizarro's powers are identical to Superman's, with the most substantial difference being that they are reverse versions of certain abilities.