Leonardo (Teenage Mutant Ninja Turtles)

Leonardo was a humanoid turtle, and a member of the Teenage Mutant Ninja (or Hero) Turtles, distinguished by his blue mask.

Biography
During Red Nose Day 1991, Leonardo was with the rest of the Teenage Mutant Ninja Turtles in their underground lair as Master Splinter told them that they needed to play a part in the charitable occasion. Splinter showed that he could turn his nose red, and when the turtles - including Leonardo - questioned how they could do that, not even having green noses, Splinter reminded them that there was more to life than weapons and pizza.

Donatello misinterpreted this, asking for Raphael's sai daggers, and using them to slash at a pizza, splatting red sauce onto his fellow turtles' "noses", including Leonardo's. After Michaelangelo licked off his "nose", Donatello remarked that they'd have to do it all again. (COMIC: )

Behind the scenes
Leonardo is one of the main characters in Teenage Mutant Ninja Turtles.