Rat King, TMNTPedia

Rat King is a character appearing in most TMNT incarnations, an enigmatic character whose origins are usually either unknown or arcane. His relationship with the Turtles is quite complicated; he has appeared in his various incarnations as an enemy, an anti-hero, and also as an ally of the Ninja Turtles. Splinter

Rat King (TMNT comic strips), TMNTPedia

Rat King, TMNTPedia

Rat King (2006 action figure), TMNTPedia

Giant rats (2012 TV series), TMNTPedia

Rat King, TMNTPedia

Rat King, Lord of the Rats, TMNTPedia

Teenage Mutant Ninja Turtles issue 131 (IDW)

Wrath of the Rat King, TMNTPedia

TMNTPedia - Mirage TMNT characters: Agent Bishop, Alternate Shredders, Ananda, April O'Neil, Avian, Baxter Stockman, Bebop, Blobboid, Bloodsucker, Chote, Claw Shredder, Commander Mozar, Comple