TMNT 2012 Leonardo-10-
Leonardo in his normal ninja gear.

Leo The Knight Profile
Leonardo in his LARP costume.

Mystic Leonardo With Hood Profile
Leonardo in his mystic attire.

Dimension X Leonardo Render
Leonardo in his space armor.

Dark Leonardo Profile
Leonardo in his super ninja gear.

Samurai Leonardo
Leonardo in his samurai armor.

Real Name Leonardo
Alias Leo • Fearless Leader • Lame-o-nardo
Gender Male
Species Mutant Red-Eared Slider Turtle
Occupations Leader of Ninja Turtles
Leader of The Hamato Clan
Sensei of Ninja Turtles
Sensei of The Hamato Clan
Team Ninja Turtles
The Hamato Clan
Allies Ninja TurtlesSplinterTang ShenApril O' NeilCasey JonesKaraiShinigamiFugitoidKirby O' NeilThe Foot Clan (Karai)Mighty MutanimalsUtrom High CouncilSalamandrian Air Fleet1987 TurtlesPunk FrogsBigfootDr. Victor Falco (Formerly) • HachikoIce Cream KittyChompy PicassoDr. Cluckingsworth M.D.AeonsHiidralaDaagonsTokkaAlopexSal CommanderMona LisaMr. Murakami SanMiyamoto UsagiKintaroAkemiSumo KumaTanukiBernieRenet TilleyLord SimultaneousDr. FrankensteinEsmeraldaVulkoFrankenstein's MonsterIgorMetalheadWingnutScrewlooseVrax BelebomeSir MalachiTimothy (Formerly) • Zog (Formerly) • ZenoJack J. KurtzmanEarth Protection Force
Enemies The Foot ClanThe ShredderPurple DragonsKraang Hive MindTriceraton EmpireInsectoidsDream Beavers1987 Foot ClanThe Rat KingArmaggonAstro ZombiesChimeraSnakeweedThe CreepSon of SnakeweedSpider BytezMega ShredderMom-ThingThe NewtralizerJustinCreepweedLord Vringath DreggDemon BatsItalian MafiaJeiJorogumaHo ChanHattori TatsuKavaxasFungus HumungousMushroom MenPizza FaceParasiticasIce DragonsOvermindSavanti RomeroCount Vlad DraculaThe MummyWerewolfSkeevix VirusSpasmosaurSheldonMutagen ManSpy-RoachSpeed DemonSquirrelanoidsWyrmZa-Naron
Weapons Katana SwordsBows & ArrowsLaser Katana SwordsLaser Blaster (see below)
Home New York City
Height 5' 1"
Age 16
Hair Color N/A
Eye Color Deep Blue
First Appearance Rise of the Turtles Part One
Voiced By Jason Biggs (Season 1 - Season 2)
Dominic Catrambone (Season 2)
Seth Green (Season 3 - Season 5)
Leonardo's the leader in blue, does anything it takes to get his ninjas through!

—Theme Song

Leonardo, aka Leo, is a member of the Ninja Turtles. He is a mutant Red-Eared Slider turtle who is the leader of the Ninja Turtles and the oldest of his brothers. As the leader of the team, he is the best pupil of Splinter, is very skilled in Ninjutsu compared to his brothers, and also takes Splinter's advises more into consideration. Later on after the death of his master, he becomes the new leader of The Hamato Clan and therefore, becomes the new sensei of Raphael, Donatello, Michelangelo, April O' Neil, Casey Jones, Karai and Shinigami. Wearing a blue bandanna that represents his leadership, he wields a pair of Katana Swords as his signature weapon of choice. He is in love with Karai. He has a rivalry with Raphael (brotherly), Takeshi/ Tiger Claw, Oroku Saki/ The Shredder/ Super Shredder, Kraang/ Kraang Prime and Count Vlad Dracula. Leonardo debuts in Rise of the Turtles Part One.


Fifteen years ago, Hamato Yoshi had suffered from the loss of both his wife, Tang Shen, and his daughter, Hamato Miwa, by the hands of Oroku Saki after a fire that took place in the Hamato Dojo in Tokyo, Japan one night. Since Yoshi had lost everything on that night, he fled to New York City to start a new life, which was the place that Tang Shen wanted to move to with Yoshi and Miwa. One day in New York, Hamato Yoshi went to a pet shop and bought four baby turtles. As he was leaving from the pet shop to head back home, he bumps past a strange man in the streets. Yoshi had bad vibes about this man and decided to follow him, leading him into an alley.
Hamato Yoshi Fights Normans
That was where he saw the man meeting up with a group of men that were identical in appearance to him. As they gathered around, one of the men was seen holding what seemed to be a canister with a weird, green substance. But then the meeting was interrupted when Yoshi accidentally steps on a rat that was passing by him, causing him to blow his cover. The group of men spotted him and so a fight occurs when Hamato Yoshi tries to defend himself from the men. During the fight, the canister falls on both Yoshi and the four baby turtles, causing the substance to spill and mutates all five of them.
Baby Turtles Mutation
With the ooze coming in contact with them, Hamato Yoshi mutates into a humanoid brown rat, which was the last animal he came in contact with before his mutation. In the other hand, the four red-eared slider turtles mutate into humanoid versions of themselves. Due to their new mutant forms, they fled from the surface and moved into the Sewers so that they could live there. The five mutants move in an abandoned subway station, which they now call home. Hamato Yoshi, now adopting the nickname of "Splinter" becomes the adoptive father of the mutant turtles and names them all after his four Renaissance Italian artists. One of the turtles was named Leonardo, named after the Renaissance Italian artist, Leonardo da Vinci. At some point while Splinter started to raise the turtles, he introduces them into the ways of Ninjutsu in order for them to become the new ninjas of his family's clan, The Hamato Clan. During their training, Leonardo was given a blue bandanna and a pair of Katana Swords as his signature weapons of choice.




Powers, Abilities, and Weaponry




Season 1

Season 2

Season 3

Season 4

Season 5


TMNT 2012 Leonardo-11-
The Gallery of Leonardo can be see Here.


  • Even though he is the same age as his brothers, he is the oldest of them.
  • Leonardo is a fan of Space Heroes and views Captain Ryan as his role model in being a leader for the Ninja Turtles.
  • His mask probably signifies his main animal: the lion.
  • He has a fear of being rejected as a leader.
  • Ever since Within the Woods, Leonardo's voice actor, Jason Biggs, was replaced by Seth Green. This is due to Biggs leaving the studio due to him wanting to be part of much more serious projects. But in the series, the alteration of Leonardo's voice was said to be effected by the damages done by The Foot Clan in The Invasion.
  • Season 3 features Leonardo getting better after being injured and as well as him stepping up on being a better leader.
  • Like most of the past incarnations of Leonardo, he has a brotherly rivalry with Raphael.
  • He is right-handed.
  • He is the oldest of the four turtles.
  • His favorite show is Space Heroes.
  • Leonardo is seen to be uncomfortable with Raphael's relationship with Mona Lisa, Leo resemblance of a how the society views a queer relationships of today.

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