Teenage Mutant Ninja Turtles Rat King Action Figure Telepathic Commander of the Rat Army Cold-blooded and deceitful, formerly known as Dr. Falco, The Rat King is determined to rid the city of humanity and claim it for his rat brothers 2012 Viacom International Inc. All Rights Reserved TEENAGE MUTANT NINJA TURTLES and all related titles, logos and characters are trademarks of Viacom International Inc.