Leonardo

Physical appearance 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 two inches 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, whilst 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 grey carapace that has a somewhat darker outer trim around the edges. Plastered on the back is a three-numbered steel blue pattern that resembles closely to the curly bracket symbol: {}, His eyes are onyx and often rather slanted

Personality: is prone to make jokes and sarcastic remarks, often during inappropriate times, which can sometimes leave his brothers annoyed and frustrated towards him. Leo has a tough time taking things seriously, especially during the times he puts his full faith on himself rather than his team.

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 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, though Leo has his doubts about her intentions. However, Leo's tendency to be easily impressed and incessant need for attention can hamper his caution.

Leo is very strategic with his plans and formulating ideas, noticing when Raph's leadership fails, he comes from the background to show everyone how its really done. 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 sensible, 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 grave situations and finds it very difficult to take responsibility for his actions while also being boastful about his positive or impressive actions. Although he has been shown to try to reconcile his mistakes and be sympathetic towards others’ plights such as in “Bullhop” by inviting Bullhop to live with his family and trying to gather the Mad Dogs' continued support for him despite their own reservations for accidentally causing his mutation.

Leo demonstrates forte in analytical thinking as shown in “Many Unhappy Returns”, able to plan several steps ahead of Big Mama, but he can be so determined to successfully execute his plans while also having glory that he uses his allies instead of working with them and is comfortable misleading his allies and opponents alike to his achieve goals such as in “Air Turtle”.

Rooftop/City/Sewers/Your house