[1] He is an evil, super-intelligent gorilla who gained mental powers after being exposed to a strange meteorite's radiation.

Grodd forced one of the explorers to kill the alien and took over Gorilla City, planning to conquer the world next.

Solovar telepathically contacts Barry Allen to warn of the evil gorilla's plans, and Grodd was defeated.

[4] In his first pre-Crisis appearance, Grodd meets the Flash while searching for Solovar (who had been imprisoned) during a trip to the human world.

Grodd fakes his death by transferring his mind into a man in Central City, but is caught and arrested.

[5] During the hunt for a sorcerer's treasures, Grodd is able to fend off Wally West and escape him using the mentally-commanded Quadro-Mobile,[6] then later knocks Captain Comet unconscious,[7] and is shown to be able to hypnotize Star Sapphire,[8] as well as protect others from mental probing.

Grodd's plans are defeated by the Flash, assisted by the Pied Piper, Vixen, and Rex the Wonder Dog.

Savage approaches Grodd, offering him membership in this new anti-Titans group known as Tartarus and promises of power and immortality.

When Siren switches alliances during the battle and aids Tempest in escaping, the Tartarus members go their separate ways.

During the Final Night, Grodd attempted to use a mystical talisman called the Heart of Darkness (normally effective only in eclipses) that brought out the 'inner beast' of humans, turning the population of the town of Leesburg into feral monsters, including Supergirl.

In the course of this, Grodd absorbs too much neural energy from his fellow apes, leaving him with the intelligence of a normal gorilla.

[12] He has since recovered, and a failed attempt to set up a base in Florida leads to his capture and incarceration in Iron Heights.

Suddenly changing back to his original shape and size, he quickly defeated the gang, making them believe that they are burning in molten lava by using his telepathic abilities.

Grodd is also seen in the Superman/Batman arc "Public Enemies" controlling numerous villains and heroes to take down Superman and Batman for the prize of one billion dollars offered by then U.S. President Lex Luthor.

Despite his use of foes such as Mongul, Solomon Grundy, Lady Shiva, and Nightshade, Batman is able to deduce the mind behind the attacks and they quickly dispose of Grodd.

[13] Grodd is responsible for Hunter Zolomon's crippling, resulting in the man's transformation into the villainous Zoom after trying to change the event to never have happened.

[20] In the Final Crisis storyline, Gorilla Grodd was among the high ranked superheroes and supervillains that were turned into Justifiers.