Patrick Fraley is an American voice actor and voice-over teacher, known as the voice of Krang, Casey Jones, Baxter Stockman and numerous other characters in the 1987 Teenage Mutant Ninja Turtles animated television series and voiced Falcon in the 2003 Stuart Little animated television series. Denver, the Last Dinosaur as Denver the Last Dinosaur. BraveStarr as Marshal BraveStarr, Young BraveStarr, and Cactus Head. G.I. Joe 1985-86 as Ace , Airtight, and Wild Weasel. Not to mention so many many more.