Leonardo (TMNT)

Leonardo, nicknamed Leo, is a superhero appearing in Teenage Mutant Ninja Turtles comics and related media, and created by American comic book artists, Kevin Eastman and Peter Laird. He is one of the four central characters of the franchise, along with his brothers, Donatello, Raphael and Michelangelo.

Often depicted wearing a blue bandanna, his signature weapons are two katana. In most iterations, Leonardo is the leader, as well as the most mature and disciplined of the Turtles. Like his brothers, he is named after an Italian Renaissance artist, in this case, Leonardo da Vinci. In the original comics, all four of the Turtles wear red masks, but for the creators to tell them apart, he was written and redrawn to have an ocean-blue mask.

Idea Wiki appearances

 * Leonardo appears as a guest crossover hero in Marvel's Spider-Man: Webbed Champion, voiced by Johnny Yong Bosch. Appearing in "Legendary Universes, Part 5: Of Spiders and Turtles", he and his brothers team up with Spider-Man and his fellow Champions to stop the Spider-Emperor and his clan as well as the Shredder and the Foot Clan.
 * Leo makes a cameo appearance in the Disney+ film Superhero Adventures: Infinity War. He along with Master Splinter and April O'Neil watch as the Multiverse Star is unlocked.
 * Leo returns in the show's second Disney+ sequel miniseries Marvel's All-Star Multiverse, voiced again by Johnny Yong Bosch.