[1] In addition to the obvious similarity in their names, both clans originate from Feudal Japan, practice ninjutsu and black magic, and have become powerful global organized crime rings who are familiar with multiple illegal activities such as drug smuggling, counterfeiting of money, gunrunning, murder, assassination, computer hacking, theft, and terrorism.

In the universe of Eastman and Laird's Teenage Mutant Ninja Turtles, the Foot Clan was founded in Feudal Japan by two men named Sato and Oshi.

Dishonored, Yoshi and Shen fled to New York City, while Nagi's younger brother Oroku Saki was adopted by the clan and was trained to become a fierce ninja.

Saki framed Yoshi for trying to murder a visiting sensei and had him exiled to New York City, thus clearing the way to take over the Foot Clan.

In the IDW Publishing adaption, the Foot Clan existed since the time of feudal Japan where it was founded by a ronin by the name of Takeshi Tatsuo who had been betrayed by his master.

When Tatsuo was betrayed by his clan are learning that he made a pact with a magician, his mind was born again in the son of his murderer Oroku Saki, the uprooting of the reawakening of his old memories powered over the communities and with Kitsune's counsel the Foot was revived in modern times.

In more recent times, the clan under the leadership of Oroku Saki (who was now operating as Shredder) tried to expand its supremacy in New York City.

In this endeavor, the Foot Clan also came into contact with the extradimensional warlord General Krang who also wanted to create a mutant army to meet his objectives.

Besides Shredder, Kitsune, and a substantial number of Foot Ninjas, other members of the Foot Clan include Karai (who was a descendant of Oroku Saki and the daughter of Oroku Yori), Masato, Dr. Miller, Alopex (a mutated Arctic Fox), Rocksteady, Bebop, Koya (Shredder's pet brown falcon who was later mutated), and Bludgeon (a mutant hammerhead shark).

The Shredder had taken what Foot Soldiers he had from Japan, and began taking kids from the streets upon moving to New York and training them in Ninjutsu himself.

In the films, the Foot use the kanji Oni (鬼), which translates to "demon" or "ogre", as their symbol, worn in their hachimaki or on their backs.

The Shredder, who in this series is a long-lived Utrom named Ch'rell, has led the Clan since its creation and has turned it into a fearsome and secret group present across the world.

The clan was founded in Japan by a master martial artist named Koga Takuza, who used the swords of his fallen foes to forge a helmet stronger than steel, dubbing it the Kuro Kabuto.

The basic Foot Soldiers are silent ninjas with black robes and red bug-like eyes who are equipped with various weapons such as swords, shurikens, spears, nunchucks and tonfas.

In Rise of the Teenage Mutant Ninja Turtles, the Foot Clan were initially peaceful and lived in the feudal Japan, but came under attack and were nearly wiped out, their leader Oroku Saki sought help from an Oni who provided him with a mystic armor that allowed him to defeat their attackers, but the armor corrupted Saki and turned him to the Shredder who led the Foot down to an evil path.

The Foot Clan appear in the film Batman vs. Teenage Mutant Ninja Turtles (which is based on the IDW crossover).

The Foot Clan collaborated with the League of Assassins in a plot that involved using a stolen Wayne Enterprises cloud seeder to spread a compound containing a mixture of mutagen and Joker venom on Gotham City.

Peter Vogl, referring to the movie from 1990, found the teenage members of the Foot Clan a remarkably dark representation of the youths of New York, who are so depraved and without moral compass that they prefer to follow a Japanese gangster boss rather than the generation of their parents.

He found that this culture-pessimistic vision seems implausible only at first glance, considering actual cases of youths from Western countries following the Islamic State.

He also pointed out that the root of the challenge depicted in Teenage Mutant Ninja Turtles is not domestic, but Shredder and his assistants come from abroad.