Fong, a Chinese-American, was the leader of the Purple Dragons, a gang of street thugs from New York. He sometimes fights with a butcher knife. He and his gang members Sid and Tsoi often work as errand boys for the Shredder in those tasks in which the Foot Clan is not necessary.
Fong, like the other Dragons, has many tattoos on his body, which consist mainly of dragon designs. He also has a scar-like birthmark on his chest.
The Purple Dragons attack Mr. Murakami's Noodle Shop. The turtles arrived and fended them off. Leonardo is about to deliver a final blow on Fong, but does not, due to an act of mercy. When the Ninja Turtles find the Purple Dragons's hideout at the abandoned Killer Cookie Fortune Cookie Co., they end up fighting the Purple Dragons, Xever, and Bradford where Xever fought Leonardo and Michelangelo. The turtles retreated from Bradford and Xever when the Foot Soldiers arrived.
Xever then attacks Fong holding him responsible for leading the Ninja Turtles into their hideout. After the Ninja Turtles subdued Chris Bradford, the Ninja Turtles meet up with Xever, the Foot Soldiers, and the Purple Dragons with a trade to get back Mr. Murakami. This results in a fight between the Ninja Turtles, the Foot Clan and the Purple Dragons leading up to the fight with Xever. When Chris Bradford and Xever double-team the Ninja Turtles and plan to dispose of them, Fong throws down one of Leonardo's swords to him and Leo cuts down the water tower to flush away the bad guys. Having paid his debt to Leo for sparing him, Fong flees into the night.
He and his gang are still allied with Shredder and aid him in his plan to destroy the turtles.
- "The Pulverizer"
- "Showdown, Part 2" - Cameo
- "The Good, The Bad, and Casey Jones" - Casey beats the Purple Dragons up
- Hero Portal Teenage Mutant Ninja Turtles Teenage Mutant Ninja Turtles: Shadow Heroes Teenage Mutant Ninja Turtles: Shadow Heroes. Fong appears as an enemy in the games