8.3
/10
Leonardo is a fictional character portrayed by Seth Green in the TV series Teenage Mutant Ninja Turtles.
In the first episode they appeared in, titled Within the Woods (season 3), they were 40 years old.
They appear in 70 episodes out of a total of 124 aired and have accumulated 1980 positive votes.
The character of Leonardo is mainly associated with Donatello, Raphael and Michelangelo.
Leonardo is also portrayed by Jason Biggs and Dominic Catrambone.

Leonardo

by Seth Green

character

Episodes70

  • 8.1
    /10

    Within the Woods

    episode S3.E1 october 2014
    After being provoked from stopping the Kraang invasion and being outmatched by Shredder and Kraang Prime, April, Casey and the Turtles take refuge inside a cabin far from the city in the woods.
  • 5.8
    /10

    A Foot Too Big

    episode S3.E2 october 2014
    When the Turtles discover Bigfoot in the woods, Donnie befriends it and insists they protect it from a hunter.
  • 7.6
    /10

    Buried Secrets

    episode S3.E3 october 2014
    The turtles find an old alien spacecraft that is connected to April's past.
  • 7
    /10

    The Croaking

    episode S3.E4 november 2014
    Mikey runs away and befriends a mutant frog. Only to learn the frog and his family have nefarious plans.
  • 7.7
    /10

    In Dreams

    episode S3.E5 november 2014
    The turtles get trapped in their dreams by Dream beavers. They can't escape except with the help of a man.
  • 7
    /10

    Race with the Demon

    episode S3.E6 november 2014
    When Casey and Donatello work together to build a hot rod, a mutant challenges them.
  • 7.2
    /10

    Eyes of the Chimera

    episode S3.E7 january 2015
    When Casey, Raph, Mikey, and Donnie are captured by a new mutant, April and Leo must overcome disabilities in order to save them.
  • 8.5
    /10

    Vision Quest

    episode S3.E8 january 2015
    Leo takes the Turtles to train in the woods in an advanced ninja ritual; the Turtles must overcome their weaknesses and face their enemies to become a true ninja.
  • 8.4
    /10

    Return to New York

    episode S3.E9 january 2015
    The turtles return to New York, facing the Kraang and Kraang Prime for a rematch to see who New York really belongs to.
  • 8.5
    /10

    Serpent Hunt

    episode S3.E10 february 2015
    As the Turtles search for Karai, they must deal with a city filled with Kraang and Shredder.
  • 8.3
    /10

    The Pig and the Rhino

    episode S3.E11 march 2015
    Donnie finishes a new batch of Retro-Mutagen in hope of saving Karai; the Turtles are hunted by Shredder's new henchmen, Bebop and Rocksteady.
  • 8.3
    /10

    Battle for New York: Part 1

    episode S3.E12 march 2015
    Leo is suspicious when Slash emerges leading a team called the Mighty Mutanimals; the Turtles must brave the bizarre world of Dimension X to save the enslaved people of New York.
  • 8.4
    /10

    Battle for New York: Part 2

    episode S3.E13 march 2015
    Leo is suspicious when Slash emerges leading a team called the Mighty Mutanimals; the Turtles must brave the bizarre world of Dimension X to save the enslaved people of New York.
  • 7.5
    /10

    Casey Jones vs. The Underworld

    episode S3.E14 march 2015
    Casey Jones thinks he can take on the criminal underworld on his own, but soon discovers that he is in over his head.
  • 7.2
    /10

    The Noxious Avenger

    episode S3.E15 april 2015
    A new mutant called Muckman starts to gain notoriety as NYC's "Monster Hero".
  • 8.2
    /10

    Clash of the Mutanimals

    episode S3.E16 may 2015
    The Shredder kidnaps and experiments on the Mighty Mutanimals.
  • 7.7
    /10

    Meet Mondo Gecko

    episode S3.E17 may 2015
    Michelangelo meets Mondo Gecko, a skateboarding mutant, and tries to save him from being condemned to a life of crime.
  • 8.6
    /10

    The Deadly Venom

    episode S3.E18 may 2015
    When Karai is brainwashed, she begins hunting the Turtles.
  • 7.8
    /10

    Turtles in Time

    episode S3.E19 august 2015
    The Turtles travel back in time and must help a young sorceress stop a dreadful warrior.
  • 9.2
    /10

    Tale of the Yokai

    episode S3.E20 august 2015
    The Turtles end up in Japan's past and must save a young Hamato Yoshi.
  • 7.5
    /10

    Attack of the Mega Shredder!

    episode S3.E21 august 2015
    Leonardo decides to sneak into Shredder's lair alone, and winds up facing the biggest mutant threat yet.
  • 7.6
    /10

    The Creeping Doom

    episode S3.E22 august 2015
    After an accident, Donnie finds himself slowly losing his intelligence.
  • 8.4
    /10

    The Fourfold Trap

    episode S3.E23 september 2015
    The Turtles are baited by an unknown enemy into deadly traps.
  • 8.2
    /10

    Dinosaur Seen in Sewers!

    episode S3.E24 september 2015
    Raph makes a new friend named Zog, an alien dinosaur. But Zog is hiding a dark secret.
  • 9.2
    /10

    Annihilation: Earth! Part 1

    episode S3.E25 september 2015
    When the turtles get word of the Kraang's return, they realize there is an even bigger threat coming to Earth.
  • 9.4
    /10

    Annihilation: Earth! Part 2

    episode S3.E26 september 2015
    When the turtles get word of the Kraang's return, they realize there is an even bigger threat coming to Earth.
  • 7.7
    /10

    Beyond the Known Universe

    episode S4.E1 october 2015
    The Turtles experience outer space and alien life for the first time.
  • 7.4
    /10

    The Moons of Thalos 3

    episode S4.E2 november 2015
    When the team crash lands on an ice moon along with an enemy, all must put their differences aside to survive.
  • 7.1
    /10

    The Weird World of Wyrm

    episode S4.E3 november 2015
    Casey Jones accidentally unleashes a fourth-dimensional being called Wyrm.
  • 7.2
    /10

    The Outlaw Armaggon

    episode S4.E4 november 2015
    Lord Dregg sets a fearsome bounty hunter, the shark mutant Armaggon, on the trail of the Turtles.
  • 7.3
    /10

    Riddle of the Ancient Aeons

    episode S4.E5 january 2016
    The team must journey through an ancient alien temple to get a piece of the black hole generator.But they get an ancient star which marks the Aeons
  • 7.5
    /10

    Journey to the Center of Mikey's Mind

    episode S4.E6 january 2016
    When microscopic aliens invade Mikey's mind, the Turtles have to chase them through the strange world of Mikey's subconscious.
  • 8.2
    /10

    The Arena of Carnage

    episode S4.E7 january 2016
    The turtles are captured and thrown into the Triceratons' battle area.
  • 8
    /10

    The War for Dimension X

    episode S4.E8 january 2016
    The Turtles must gain the trust of the Utrom Council in order to find the next piece of the black hole generator.
  • 7.5
    /10

    The Cosmic Ocean

    episode S4.E9 march 2016
    The Turtles journey through the cosmic ocean of Varuna, where they must proves themselves worthy to Hiidalra. Hiidalra is an aquatic alien queen who holds the second piece of the black hole generator.
  • 9.1
    /10

    Trans-Dimensional Turtles

    episode S4.E10 march 2016
    In the most cowabunga crossover ever, the 2012 and 1987 Turtles team up to stop the Krang from tinkering with dimensions.
  • 7.2
    /10

    Revenge of the Triceratons

    episode S4.E11 april 2016
    Donatello is feeling inferior to the Fugitoid, but his intellect is put to the test when the Triceratons attack.
  • 7.5
    /10

    The Evil of Dregg

    episode S4.E12 april 2016
    When Raphael loses his fighting mojo, he must overcome his feelings to save his brothers from certain doom.
  • 7.6
    /10

    The Ever-Burning Fire

    episode S4.E13 april 2016
    The team must overcome impossible odds in order to obtain the final Black Hole Generator piece.
  • 9
    /10

    Earth's Last Stand

    episode S4.E14 april 2016
    As the team finally reaches Earth, the Fugitoid reveals a horrible secret about his past.
  • 8.2
    /10

    City at War

    episode S4.E15 august 2016
    April faces a deadly, new enemy when she graduates to full Kunoichi; the Turtles must deal with the return of some old foes.
  • 8.2
    /10

    Broken Foot

    episode S4.E16 august 2016
    When Leonardo secretly allied himself with Karai, he gets himself into deeper danger than he could have realized.
  • 7.5
    /10

    The Insecta Trifecta

    episode S4.E17 august 2016
    The team faces Stockman-Fly's new insect minions, and Raph has to man up to overcome his fear of insects and lead the team.
  • 7.4
    /10

    Mutant Gangland

    episode S4.E18 september 2016
    Don Vizioso's gang tracks the Turtles with a slew of Anti-Mutant weapons.
  • 7.5
    /10

    Bat in the Belfry

    episode S4.E19 september 2016
    Michelangelo befriends some odd, new superheroes named Wingnut and Screwloose.
  • 9.1
    /10

    The Super Shredder

    episode S4.E20 november 2016
    For the first time, the Turtles encounter something they cannot defeat... The Super Shredder!
  • 8.6
    /10

    Darkest Plight

    episode S4.E21 november 2016
    The Turtle team hunts for their Sensei, but soon realizes they are being hunted as well.
  • 7.9
    /10

    The Power Inside Her

    episode S4.E22 november 2016
    Donatello becomes concerned and decides to test April, only to discover that her psychic abilities are rapidly growing in power.
  • 7.7
    /10

    Tokka vs. The World

    episode S4.E23 february 2017
    When Tokka returns after her presumable death, she finds out that her baby has been taken from her. After realizing this she violently searches for her lost baby.
  • 8.2
    /10

    The Tale of Tiger Claw

    episode S4.E24 february 2017
    A dangerous female mutant, by the name of Alopex, appears with a personal vendetta against Tiger Claw. The Turtles, April and Casey try to befriend her, but turns on them and furiously goes after Tiger Claw alone. Unfortunately for her, Tiger Claw has prepared for her unexpected arrival.
  • 9.4
    /10

    Requiem

    episode S4.E25 february 2017
    Super Shredder has returned with even greater vengeance, forcing the Turtles to enlist the combined aid of Splinter, April, Casey, Karai, Shinigami and the Mighty Mutanimals to destroy him once and for all.
  • 9.5
    /10

    Owari

    episode S4.E26 february 2017
    With the demise of their beloved father and Karai incapacitated, the turtles, April, and Casey infiltrate Super Shredder's new lair to put an end to Oroku Saki once and for all, no matter what it takes.
  • 7.9
    /10

    Scroll of the Demodragon

    episode S5.E1 march 2017
    The team faces a new enemy with mystical powers named Kavaxas.
  • 8
    /10

    The Forgotten Swordsman

    episode S5.E2 march 2017
    Karai searches for the Kuro Kabuto, claiming to be the rightful heir to the Foot Clan, when she encounters an old rival.
  • 8
    /10

    Heart of Evil

    episode S5.E3 april 2017
    Donnie's grudge with Don Vizioso threatens the Turtles' newest mission.
  • 8.4
    /10

    End Times

    episode S5.E4 april 2017
    The Turtles must defeat the mighty demodragon Kavaxas to prevent him from destroying the world.
  • 7.6
    /10

    When Worlds Collide

    episode S5.E5 june 2017
    The Newtralizer returns to New York City more powerful than ever before and joins forces with a dangerous, yet unexpected ally. With the help of Mona Lisa, the Turtles fight back to defend their city.
  • 7.9
    /10

    When Worlds Collide Part 2

    episode S5.E6 june 2017
    The Newtralizer returns to New York City more powerful than ever before and joins forces with a dangerous, yet unexpected ally. With the help of Mona Lisa, the Turtles fight back to defend their city.
  • 8.2
    /10

    Yojimbo

    episode S5.E7 july 2017
    The Turtles are transported to an alternate dimension, where they befriend the rabbit samurai and master swordsman: Miyamoto Usagi.
  • 7.8
    /10

    Osoroshi No Tabi - Scary Journey

    episode S5.E8 july 2017
    Usagi leads the Turtles through a haunted forest, where they end up encountering mischievous and highly dangerous spirits.
  • 8.4
    /10

    Kagayakei Kintaro

    episode S5.E9 august 2017
    As they reach their destination, Usagi and the Turtles must help young Kintaro fulfill his destiny.
  • 9
    /10

    Lone Rat and Cubs

    episode S5.E10 august 2017
    The turtles tell the back story behind their creation.
  • 7.9
    /10

    Carmaggedon

    episode S5.E13 september 2017
    After gaining the loyalty of both the Badger and Scale Tail Clans, Raph, Donbot, Mikey, and Kira head to Oasis. But, Maximus Kong is on their tails, and harboring a secret.
  • 7.8
    /10

    The Curse of Savanti Romero

    episode S5.E14 september 2017
    Renet returns to ask the Turtles for help, to stop Savanti Romero from unleashing an undead army on Modern-day New York.
  • 7.6
    /10

    The Crypt of Dracula

    episode S5.E15 september 2017
    Count Dracula is awakened, and turns Raphael into a vampire.
  • 7.7
    /10

    The Frankenstein Experiment

    episode S5.E16 october 2017
    Savanti recruits Frankenstein's Monster and will soon unleash his creatures on the 21st Century.
  • 8
    /10

    Monsters Among Us!

    episode S5.E17 october 2017
    Upon returning to present-day New York City, Renet and the Turtles discover (much to their horror) that the dystopian zombie-infested city is ruled by even more monsters, vampires and zombies than before, realizing that their previous failures to defeat Savanti when they had the chance has made the mishap plummet from bad to even worse. After returning to the safety of their underground sewer lair, they have one last chance to have order restored, but when their lair is discovered and trashed by Savanti's monster tribe, who infect Donnie and turn him into a vampire in the chaos of the brawl, things become even worse.
  • 8
    /10

    Wanted: Bebop and Rocksteady

    episode S5.E18 november 2017
    The 1987 Shredder and Krang recruit the 2012 Bebop and Rocksteady, finding them better than their own incompetent counterparts.
  • 8.2
    /10

    The Foot Walks Again!

    episode S5.E19 november 2017
    The Turtles must train their 1980s selves to fight back against a massive threat. The danger is bigger than any of them have encountered before, so they must be prepared.
  • 8.1
    /10

    The Big Blow Out

    episode S5.E20 november 2017
    The 1980s Shredder and Krang employ Rocksteady and Bebop and discover that their plans are working out better than they ever thought when they travel dimensions.

Best moments10

  • 7.5
    /10
    80% of the votes

    The Cosmic Ocean

    episode S4.E9 march 2016
    The Turtles journey through the cosmic ocean of Varuna, where they must proves themselves worthy to Hiidalra. Hiidalra is an aquatic alien queen who holds the second piece of the black hole generator.
  • 8.6
    /10
    79% of the votes

    The Deadly Venom

    episode S3.E18 may 2015
    When Karai is brainwashed, she begins hunting the Turtles.
  • 9.5
    /10
    77% of the votes

    Owari

    episode S4.E26 february 2017
    With the demise of their beloved father and Karai incapacitated, the turtles, April, and Casey infiltrate Super Shredder's new lair to put an end to Oroku Saki once and for all, no matter what it takes.
  • 8.5
    /10
    70% of the votes

    Vision Quest

    episode S3.E8 january 2015
    Leo takes the Turtles to train in the woods in an advanced ninja ritual; the Turtles must overcome their weaknesses and face their enemies to become a true ninja.
  • 8.5
    /10
    65% of the votes

    Serpent Hunt

    episode S3.E10 february 2015
    As the Turtles search for Karai, they must deal with a city filled with Kraang and Shredder.
  • 8.2
    /10
    64% of the votes

    Yojimbo

    episode S5.E7 july 2017
    The Turtles are transported to an alternate dimension, where they befriend the rabbit samurai and master swordsman: Miyamoto Usagi.
  • 8.1
    /10
    63% of the votes

    Within the Woods

    episode S3.E1 october 2014
    After being provoked from stopping the Kraang invasion and being outmatched by Shredder and Kraang Prime, April, Casey and the Turtles take refuge inside a cabin far from the city in the woods.
  • 7.2
    /10
    62% of the votes

    Eyes of the Chimera

    episode S3.E7 january 2015
    When Casey, Raph, Mikey, and Donnie are captured by a new mutant, April and Leo must overcome disabilities in order to save them.
  • 8.3
    /10
    56% of the votes

    Battle for New York: Part 1

    episode S3.E12 march 2015
    Leo is suspicious when Slash emerges leading a team called the Mighty Mutanimals; the Turtles must brave the bizarre world of Dimension X to save the enslaved people of New York.
  • 8.4
    /10
    46% of the votes

    Return to New York

    episode S3.E9 january 2015
    The turtles return to New York, facing the Kraang and Kraang Prime for a rematch to see who New York really belongs to.

Votes per episode

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E26
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E7
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E9
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E26
109
E1
6
E2
9
E3
9
E4
19
E5
3
E6
88
E7
102
E8
63
E9
87
E10
29
E11
77
E12
15
E13
6
E14
21
E15
32
E16
7
E17
117
E18
12
E19
18
E20
36
E21
6
E22
11
E23
5
E24
24
E25
14
E26
23
E1
7
E2
10
E3
53
E4
25
E5
7
E6
24
E7
17
E8
115
E9
32
E10
7
E11
6
E12
9
E13
39
E14
6
E15
48
E16
0
E17
10
E18
4
E19
5
E20
11
E21
5
E22
3
E23
9
E24
8
E25
162
E26
59
E1
55
E2
17
E3
13
E4
4
E5
4
E6
91
E7
48
E8
10
E9
3
E10
--
E11
--
E12
22
E13
7
E14
6
E15
2
E16
7
E17
0
E18
9
E19
53
E20