Superhero Wiki
Mondo Gecko


Real Name
Mondo Gecko [Most appearances], Jason [2012 TV series, "Amazing Adventures" comics]
First Appearance
Teenage Mutant Ninja Turtles #19 (Archie Series) (April, 1991)
Ryan Brown, Stephen Murphy
Team Affliations
The Mighty Mutanimals
Base of Operations
New York City
Half-Human/Half-Gecko Physiology
Skills and Abilities
Fighting and Skateboarding Expertise
Tools and Weapons

Mondo Gecko is a mutant superhero in the comic book series and animated series Teenage Mutant Ninja Turtles.

Mondo Gecko was voiced by John Mariano in the 1987 series and by Robbie Rist in the 2012 series.


Once a pet lizard or human (depending on the source material) who was covered with mutagen, Mondo Gecko was transformed into a half human hybrid and raised by a criminal until he decided to fight for good.



1987 series[]

From the 1987 animated series

Mondo Gecko was once a normal gecko who was in the sewers and was exposed to the same mutagen that transformed four turtles into the Teenage Mutant Ninja Turtles.  Mondo Gecko was soon found and picked up by the mysterious criminal known only as Mr. X, who raised him to become his own personal thief.  Years later, the Ninja Turtle Michaelangelo had dreams where he remembered the existence of Mondo and decides to investigate.  When he met Mondo Gecko, he learned he was being used by Mr. X and convinced him to turn on his criminal father figure and fight for good.

Later, the Turtles recruited the help of Mondo when mutants all over New York City where being hunted by a man named Dirk Savage.  Together they were able to defeat Dirk and free the mutants from captivity.

2012 series[]

Jason's parentage and youth is largely unrevealed.  What is known is that he was a teenager who loved skateboarding and was even able to make his own halfpipe.  Through an unfortunate coincident, a cannister of mutagen fell from a passing spaceship onto his head and broke, spilling all over him.  He mutated into a four foot tall gecko-human and was kicked out of his house by his parents.  Living on the street, he eventually fell in with a criminal named Fishface, who was also a mutant.  After his boss was attacked by vigilante Casey Jones and mutated ninja turtle Michaelangelo, Mondo realized that Fishface was a terrible boss and learned the value of friendship.


Archie Comics[]

Once a human (name unknown), not much has been revealed about the youth of Mondo. He was first found as a member of the army of Old Hobb, a mutant gathering an army in order to protect mutants from humans.