Leonardo | Rottmnt

Leonardo is a red-eared slider who was mutated to become part human. He is one of the main protagonists of Rise of the Teenage Mutant Ninja Turtles and the current leader of the Mad Dogs. He wielded the portal-generating Mystic Ōdachi until it was destroyed and replaced by his katana.

Leonardo is presented to be a vibrant lime green skinned terrapin mutant/yokai who possesses the features of a Red-Eared Slider , he is the second tallest of his team. (despite being drawn as shorter in the show, leo's canon height is 5'5", making him inches two taller than Donnie). He, much like his brothers, sports an altered human-like physique consisting of sculpted, medium-sized figure. Having three fingers on each hand, and two toes on each foot. His slider features consist of light yellow stripe-like markings running down his thighs and arms, sporting two on the sides of his shoulder blades, while the other two reside on the sides of his upper thighs. He follows with two red crescent-shaped markings imprinted just on the outer edges of his eyes, having a Goldenrod yellow plastron, as well as a dullish blue gray carapace that has a somewhat darker outer trim around the edges Plastered on the back is a tri-numbered steel blue pattern that resembles closely to the curly bracket symbol: {}, His eyes are onyx and often rather slanted, probably attributing to his tease-y and 'up to no good' demeanor.

Leo wears a Dodger Blue mask that has back-length bandana tails reaching tied at the backside, his foreearms donning dark teal fingerless gloves which have a matching dodger blue trim outlined on both sides. The socks on his legs having a matching scheme, reaching just below his knee. The sock lacks coverage on his ankle and toe as well, finishing his attire with a matching blue belt that has two holsters on the back and side, a strap perched on the left of his shoulder. Finally, the turtle emblem is located partially on the right of his plastron.

When his Hamato Ninpō is unlocked and since the film, his fingerless gloves, knee-high socks, and belt with the strap are black, and one pouch remains on the back.

• Leo
• Lion
• Blue (by Splinter, Meat Sweats, Boss Bruce, and Marcus Moncrief)
• Baby Blue (by Splinter and Hypno-Potamus)
• Cucumber (by Mr. Bone)
• Blue one (by Big Mama and Splinter)
• Bluey
• Second Place (by Michelangelo)
• Nardo (by Donatello)
• Green (by Lou Jitsu/Splinter)

• Michelangelo Hamato (younger brother)
• Donatello Hamato (twin brother)
• Raphael Hamato (older brother)
• Hamato Yoshi/Splinter/Lou Jitsu (father and master)
• Barom Draxum (father? creator)
• April O'Neil (Best friend)

Leo began life as a juvenile turtle in Baron Draxum's laboratory. Wishing to create a mutant army with formidable combat capabilities, Draxum used Lou Jitsu's DNA paired with his ooze to turn Leo from an ordinary turtle into a mutant. He and his brothers were then stolen from Draxum's laboratory by Lou Jitsu promptly after their mutation and Leo went on to be raised in the sewers of New York City alongside his brothers by Splinter. Eventually, Leo and his brothers met a human girl named April and forged a strong bond with her through the years.

Leo is cheerful, prone to making jokes—sometimes at inappropriate times—and uttering quips he believes "fire up the team" as expressed in “Donnie's Gifts. His persistently carefree nature causes him to possess an airy quality and he enjoys spontaneity. It's also said in the first episode of the series that humor is how he manages to cope.

Leo has confidence that usually turns into arrogance and his brothers are often annoyed by his lack of humility, making him difficult to play games with, such as in "Lair Games".

Leo is known to be a compulsive liar as seen in "Flushed, but Never Forgotten". He doesn't like being in trouble so he makes his brothers promise not to tell Splinter about Piebald's fate, even willing to hurt Michelangelo if he tries to tell the truth to Splinter. Leo can be disingenuous as it is not unusual for his charisma to take the form of false flattery just to get into someone's good graces as seen in “Todd Scouts” and “Bad Hair Day”. His family is aware of this and as such occasionally disbelieves Leo's compliments.

Leo is at times rational and skeptical, denying the existence of things like ghosts and wanting to search for a logical answer as opposed to accrediting it to unexplainable phenomena. Despite this, he is delighted by magic and mystic powers as seen in “Hypno! Part Deux”. He also seems to be the least naïve out of the Mad Dogs as his brothers trust Big Mama almost instantly, although Leo has his doubts about his intentions. However, Leo's tendency to be easily impressed and incessant need for attention can hamper his caution.
Leo often prioritizes his own entertainment over disrupting the plans of villains as seen in his interactions with Hypno-Potamus in “Hypno! Part Deux.” Among the Mad Dogs, he isn't the most altruistic and can be reluctant to help strangers, especially if he knows no gratitude will be shown towards him or his family, such as in “The Mutant Menace” when Leo expressed he doesn't find doing kind acts for the citizens.

Leo tends to be lazy and would rather play games and values ​​downtime. Consequently, he highly values ​​convenience, suggesting that instead of focusing on their training they should acquire more powerful mystic weapons in “The Evil League of Mutants”. However, because of this Leo can be clever, finding quick, unconventional ways to solve problems, but this can also be detrimental as he can adopt or encourage dangerous or unhelpful manners of problem-solving, such as in “Air Turtle” where he is nonchalant about turning the Daves into demons in order to initiate a winning streak for them. Though sometimes clever in a pinch, Leo isn't very bright nor interested when he comes to academic disciplines and rarely reads educational content as shown in “Flushed, but Never Forgotten”. Although sometimes clever in a pinch, Leo isn't very bright nor interested when it comes to academic disciplines and rarely reads educational content as shown in “Flushed, but Never Forgotten”. While Leo has merit, his utilization of his skills often needs to be spurred by a dire situation or a lack of options as opposed to Leo trying his best when he can. When he does decide to be serious and sensitive, as in the events of "Origami Tsunami", he uses his charisma and relaxed, flexible nature to sway his brothers into listening to him. While Leo has merit, his utilization of his skills often needs to be spurred by a dire situation or a lack of options as opposed to Leo trying his best when he can. When he decides to be serious and sensitive, as in the events of "Origami Tsunami", he uses his charisma and relaxed, flexible nature to sway his brothers into listening to him. Leo is irresponsible and known to be generally unreliable among his family due to how flippant he can be even in serious situations and finds it very difficult to take responsibility for his actions while also being boastful about his positive or impressive actions.