Fans at The Tecnodrome and Ninja Pizza discovered new images of Nickelodeon's upcoming Teenage Mutant Ninja Turtles CG animated series today. The official site hosting the images has since been taken down, but not before providing one of the best looks yet at the series' core cast of heroes and villains. These images follow Playmates' robust look at the show's upcoming toy line during Toy Fair, which showed "The Kraang" in his robotic humanoid combat suit. Take a peek at the four turtle bros, Splinter, April O'Neil, Shredder and The Kraang after the jump.

[Via Ninja Pizza]