First appearance

"Michelangelo Meets Mondo Gecko"

Voiced by

John Mariano
Robbie Rist

Full name

Mondo Gecko Esquire


Mutant gecko



Eye color


Hair color


Skin color



Heavy metal musician

Significant other(s)

Candy Fine



Mondo Gecko is a fictional character from the Teenage Mutant Ninja Turtles franchise. He is a mutant gecko is a who has a zeal for skateboarding.

He first appeared in the 1987 series episode "Michelangelo Meets Mondo Gecko". In the 1987 series, he is voiced by John Mariano. He is set to appear in the 2012 series voiced by Robbie Rist. Mondo Gecko appears in various TMNT comics, he appears in the Archie series as a member of the Mighty Mutanimals and in the IDW series.



Mondo started his life as a human teenage boy playing in the local metal band "Merciless Slaughter", which alerted the Turtles as the noise came from Shredder's old hideout, which they wondered how could that be because at the time Shredder had been captured by the NYPD and remanded to jail. When the Turtles see the metal band practicing they decide to intervene as trespassing not only illegal, it is a bad idea, considering it was Shredder's territory and danger could be about. Sure enough, the band accidentally activate some dormant Foot Soldiers and are attacked. Mondo accidentally got mutagen on him and because his latest contact was with his pet lizard he carried on his shoulders, his skin started turning green and his rear end sprouted a tail that ripped through his jeans, transforming him into an anthropogenic gecko. His girlfriend, Candy Fine, decided to split up with him, and Mondo accepted, knowing she could not handle him as a mutant, and the two parted ways peacefully. Later, he became a member of the team known as the Mutanimals and eventually got back together with his girlfriend Candy.

After cancellation, the Mutanimals received their own 7-part backup-series in the pages of Teenage Mutant Ninja Turtles Adventures beginning in issue 48 and ending in issue 54. This series saw the assassination of the Mutanimals at the hands of the high-tech Gang of Four. Issues 55-57 continued the aftermath of their death and its effect on the Turtles' storyline.

This version of Mondo made a brief appearance in All Tomorrow's Yesterdays.


In the IDW comics Mondo Gecko appears - along with Herman the Hermit Crab - as recruits for the foundation of a mutant army Old Hob selected in order to seize control of the streets of New York. Again Mondo uses a skateboard and quickly makes friends with Michelangelo.

Mondo is a green lizard with blue eyebrows and black hair, he wears a yellow "Reptile Tendencies" shirt, ripped swagger jeans with chains, a watch on his right arm and what looks like sneakers cut open in the front.


1987 series

Mondo Gecko began his life as a normal lizard who fell into New York City sewers when the TMNT were mutated by the ooze, and he also became mutated. However, Mondo Gecko was picked up and carried away by Mr. X. One night, Michelangelo had a bad dream and woke up. When he heard noise up on the streets, he went up and met robbers. Among the robbers were Mondo Gecko, now a mutated and talking lizard who was raised by Mr. X. Mondo Gecko was now a member of a gang who worked for "Mr. X", the man who took Mondo away. Michelangelo convinced Mondo Gecko to turn on Mr. X. Together they fought Mr. X. After this, Mondo Gecko ends his career as a criminal and moves to the sewers and becomes "neighbors" with the TMNT and Splinter.

Mondo would return after being enlisted by the turtles to let himself get captured by Dirk Savage, a mutant hunter who had captured the likes of Tokka, Rahzar and the Punk Frogs, in order to find out where all the mutants were being taken to.

2012 series

Mondo Gecko is an upcoming character in the 2012 TV series. He is an ally to the turtles in this incarnation.

According to his concept art, he will debut in the 17th episode of Season 3.



  • Two toys of Mondo were made, one in 1990, and another one in 1992.


Mondo design
The image gallery for Mondo may be viewed here.

See also

v · e · d
Leonardo - Donatello - Michelangelo - Raphael
Splinter - April O'Neil - Casey Jones - Leatherhead - Miyamoto Usagi - Mighty Mutanimals (Mondo - Wingnut - Herman - Pete - Hob) - Cerebus
Shredder - Karai - Baxter Stockman - Bebop and Rocksteady - Krang - Rat King - Slash - Tokka and Rahzar
Mirage - Tales - Adventures - Mighty Mutanimals - Comic strip - Dreamwave - IDW
1987 series
Episodes (S1 - S2 - S3 - S4 - S5 - S6 - S7 - S8 - S9 - S10) - Mutant Turtles: Superman Legend
The Next Mutation
2003 series
Episodes (S1 - S2 - S3 - S4 - S5 - S6 - S7) - Turtles Forever
2012 series
Characters (Fishface) - Episodes (S1 - S2)
Teenage Mutant Ninja Turtles (1990) (soundtrack) - II: The Secret of the Ooze (1991) (soundtrack) - III (1993) (soundtrack) - TMNT (2007) (soundtrack) - Teenage Mutant Ninja Turtles (2014)
Role-playing games - Video games
Casey Jones (fan film) - "Turtle Power" - "Spin That Wheel"