Leonardo (Teenage Mutant Ninja Turtles)

Leonardo or Leo is one of the four main protagonists in Teenage Mutant Ninja Turtles franchise.

Leonardo is a member of the TMNT. He is the Karai's younger adoptive brother, and older brother of Raphael, Donatello, and Michelangelo, and the eldest Male child to Master Splinter. He is "The Leader" of the team.

Appearance
Leo is an emerald green colored mutant turtle with sapphire blue eyes. He wears a blue mask where the tails length range between Donnie and Mikey's. Like Raph, Leo doesn't have much changes to his physical appearance like all his previous incarnations, except for the fact that his green skin is slightly darker than the others. His height ranges between Raph and Donnie's.

Personality
Like the intro states he is the leader and makes the commands which sometimes bothers his brothers especially Raph. Leo is the most serious and disciplined out of all the turtles and is of course their leader. He has a lot of responsibility on his hands, which can sometimes overwhelm him. He watches a T.V. Show called "Space Heroes" and wants to be just like the captain he sees on T.V. Overall, Leo acts as a big brother to the turtles and as a teacher's pet to Master Splinter. He was chosen to be the leader because of his willingness not by his skill. Leo is the most mature out of all his brothers, aside from Donnie, always acting like a guide and sometimes even a parent to his brothers. He is very protective of his siblings and is willing to do anything for them. Unlike all his incarnations, Leo is somewhat a sci-fi geek, aside from Donnie. Though Donnie is more of a techy geek. Leo loves "Space Heroes" and tends to try to be like the hero on there, much to the annoyance of his brothers. He also tries too hard to act like a hero and says cheesy lines, which annoy Mikey, Donnie and Raph. He is the wisest, most experienced and balanced of the team and demonstrates many important qualities needed in a leader. Leo does his best to lead the team, but he sometimes second-guesses himself and his constant sibling rivalry with Raphael can cause problems for the team and puts a strain on his relationship with Raph. He often tries to compare himself to the main character of "Space Heroes", Captain Ryan, which annoys his brothers. Like other incarnations, Leo is a perfectionist. He developed a crush on Miwa/Karai.

Abilities
Ninjutsu: He is an extremely skilled martial artist and swordsman. Like his brothers, he is a master ninja and is very agile, able to leap over rooftops and avoid attacks from enemies, including gunfire, weapons, and punches and kicks.

Enhanced Strength: He is pretty strong when it comes to defense and counter attacks and he is mainly a well balanced ninja. Since an actual turtle can pull 5x its body weight, he and his brothers have been mutated and trained for 15 years as master martial artists by Master Splinter, so their strength has been amplified as a result.

Enhanced Speed: Despite being a turtle, he is not slow. He can run fast enough to avoid laser fire from a Kraang weapon. He can also move things at enhanced speeds too, like twirling his katana blades.

Stealth: Like his brothers, he is stealthy, can hide in the shadows, sneak around without being detected, and use hand to hand combat like a real ninja.

Katana: He uses katana blades in a traditional niten-ryu style.

Shell: He has the normal ability of a turtle to get into his shell.

Healing Factor: His healing factor seem to work while in water, where he woke up after the villainous fight 3 months later but the fight left him very injured.

Intelligence: He has a good line of defense, and is the best at planning strategies.

Stamina and Endurance: He shown off his high stamina in The Invasion, he was able to handle and stay much alive while the long Foot-Bot challenge, he was also able to defeat all of Shredder's henchmen, but all that work worn him out giving Shredder the chance to finish him off.

Healing Power: He was taught how to use ninjitsu to heal himself and others using a special technique by Splinter. It was effective in removing venom that had no cure.

Trivia

 * Leo was voiced by actor Jason Biggs, best known for his role as Jim in American Pie.
 * Now, Leo is voiced by Seth Green, best known for the voice of Chris Griffin in Family Guy and the creator of Robot Chicken.
 * Leonardo's name is Italian, meaning "Strong as the Lion/Lion-Bold".
 * His name in Kanji is (Reona​rudo)
 * Niten Ryu is described as Leonardo's weapons, but it is in fact a fighting style, and not a weapon. A two-sword setup is properly known as a daisho. Niten Ryu, instead, is short for Niten-ichi Ryu, a two-sword style developed by legendary samurai Miyamoto Musashi.
 * Leo's swords, whilst being referred to as "Katana", are actually "Ninjatō" (ninjatō), (also known as ninjaken or shinobigatana).