Cecil Turtle is an animated cartoon character in the Warner Bros. Looney Tunes and Merrie Melodies series of films. Though he made only three theatrical appearances, Cecil is remarkable in that he is one of the very few characters who was able to beat Bugs Bunny. Bugs Bunny is about to meet his match. Bugs wanders onto the screen munching his obligatory carrot and absent-mindedly begins reading the title card, grossly mispronouncing most of the credits and rushes to Cecil Turtle's house. He then bets the little, sleepy-eyed turtle ten dollars that he can beat him in a race. Cecil accepts Bugs' bet, and the race begins several days later. Bugs races away at top speed. Cecil quickly (for him, anyway) goes to a public telephone and calls up Chester Turtle. As Bugs runs relentlessly toward the finish line, Cecil and the other turtles take turns showing up at just the right moment to baffle the bunny.

The Teenage Mutant Ninja Turtles (often shortened to TMNT or Ninja Turtles) are a fictional team of four teenage anthropomorphic turtles, who were trained by their anthropomorphic rat sensei in the art of ninjutsu and named after four Renaissance artists. From their home in the storm sewers of New York City, they battle petty criminals, evil overlords and alien invaders, all while remaining isolated from society-at-large. The tactician, courageous leader and devoted student of martial arts, Leonardo wears a blue mask and wields two, long and razor-sharp ninjakens that slice through nearly anything solid. As the oldest of the four, he bears the burden of responsibility for his brothers and sensei, which often leads to conflict with Raphael. Leonardo was named after the Italian polymath, painter, engineer, inventor, writer, anatomist, and sculptor, Leonardo da Vinci.