Donatello, nicknamed Donnie, is a superhero and one of the four main characters of the Teenage Mutant Ninja Turtles comics and all related media.

In the Shades of Grey storyline, Casey Jones encounters the turtle by a ravine as he was pondering "the fractal structure of natural patterns".

Grabbing a stick, an angry Jones continually pokes the turtle until he loses his temper and sends Casey careening into the water.

During a battle with Shredder's Elite Guards in the ruins of the Second Time Around Shop, Donatello falls through the floor and breaks his leg.

At the end of the story the turtles, April and Casey move back to New York save for Donatello who chooses to stay in Northampton with Master Splinter to heal from his injury as well as reflect on everything that had happened.

After encountering the turtle vigilante ally Nobody in civilian guise he returns with him to New York to help his brothers battle Baxter Stockman.

In the current comics, Donatello finds an armored truck in the sewers which apparently had been part of a bank robbery in the sixties.

The creatures turn out to be a group of Utroms which had been stranded in the Jungle during their first stay on Earth and had been living in secret thanks to their Quantum Inversion Redimensioning device which could alter their size.

Donatello is rid of most of his body metal by issue #25 and Baxter informs him his shell had regrown and as a result he was back to being a non-cyborg turtle.

Donatello was seemingly killed at the end of issue #44 when Leonardo, Raphael and Michelangelo were on a mission to stop Krang from transforming the Earth using an alien device called the "Technodrome".

Leonardo, Michelangelo and Raphael carried Donatello's body into the freezer to slow down the bleeding and increase his chance of survival.

Donatello appears in the 1987 animated television series, voiced by Barry Gordon, and understudied for 7 episodes by Greg Berg.

[4] The 1990 TMNT: Coming Out of Their Shells would have its first show broadcast from Radio City Music Hall on Pay Per View and later released on VHS.

Donatello appeared in the live-action series, Ninja Turtles: The Next Mutation, as well as the crossover episode of Power Rangers in Space, portrayed by Richard Yee and voiced by Jason Gray-Stanford.

In the seventh season, also called "Back to the Sewer", Donatello blamed himself for Master Splinter's decompiling and vowed to restore his bits from cyberspace.

It was not until seeing his brothers in danger from the Cyber Shredder did he realize he was ignoring his responsibilities to help them and promised not to let his obsession with saving Master Splinter take control again.

Donatello also shows to have a heart as big as his intelligence as he, like his brother Michelangelo, care for humans and creatures that others find a nuisance like The Pulverizer and Bigfoot.

In Rise of the Teenage Mutant Ninja Turtles: The Movie, Donnie mostly takes a backseat with Mikey, looking out for each other while they fight against the Krang.

In the second film, Teenage Mutant Ninja Turtles II: The Secret of the Ooze, Adam Carl provided his voice.

He finds himself dejected when professor Perry reveals that the turtles' creation was a mere accident, as the ooze was just the result of chemical spillage rather than a deliberate product, but Splinter comforts him by telling him their worth is not defined by their past.

His personality in this film is very calm and measured, and was also given a much more nerdy portrayal than in previous adaptations, on account of his large glasses with the middle taped.

In the film, Donatello discovers the mutagen Shredder used on Bebop and Rocksteady can be used to turn the turtles into humans, which Michelangelo overhears, leading to a brief friction between the team.

Donatello appears in the direct-to-video crossover film Batman vs. Teenage Mutant Ninja Turtles, voiced by Baron Vaughn.

After becoming allies, he soon becomes fast friends with Batgirl and concocts an anti-mutagen alongside her to reverse the effects and nullify the plans of the Shredder and Ra's al Ghul, who developed a mutant army out of their henchmen.

At the film's conclusion, Donatello's arm is placed in a sling by Alfred before he partakes in eating pizza with his brothers and newfound allies.

Donatello appears in the follow-up TV series Tales of the Teenage Mutant Ninja Turtles, with Abbey reprising his role.

Donatello is one of the main playable characters in Teenage Mutant Ninja Turtles: Out of the Shadows, where he is voiced by Yuri Lowenthal.

Donatello is featured as one of the playable characters from Teenage Mutant Ninja Turtles as DLC in Injustice 2, voiced by Joe Brogie.

Donatello is featured as a TMNT season pass[clarify] in Smite as a Sun Wukong skin, voiced by Landon McDonald.

This is the first official Teenage Mutant Ninja Turtles game in which he is played by his original voice actor, Barry Gordon.