Teenage Mutant Ninja Heroes

Teenage Mutant Ninja Heroes is an AU/reboot version of Teenage Mutant Ninja Turtles. It stars all the characters of the series, including the ones from the TMNT summer short Teenage Mecha Ninja Turtles.

Teenage Mutant Ninja Heroes/Hamato-Sawyer Clan

 * Leonardo "Leo" Sawyer (voiced by Darren Criss): The Leader of the Ninja Heroes, and second-in-command of the Hamato-Sawyer Clan. He and his turtle brothers are quadruplets (him being the oldest), but he is younger than Basque and Frida, making him the third oldest member of the group. His theme color is blue. He has a huge crush on April, who later becomes his love interest/girlfriend.
 * Donatello "Donnie" Sawyer (voiced by ): The Brains of the Ninja Heroes. He is the second oldest of the Turtle quadruplets, but is the fourth oldest of the group. His theme color is purple.
 * Raphael "Raph" Sawyer (voiced by ): The Fighter of the Ninja Heroes. He is the second youngest of the Turtles, but is the fourth youngest of the group. His theme color is red.
 * Michelangelo "Mikey" Sawyer (voiced by Greg Cipes): The Wildcard of the Ninja Heroes. He is the youngest of the Turtles, but is the third youngest of the group. His theme color is orange. Like in the TMNT 2012 series, his catchphrase is "Booyakasha!".
 * Frida Franklin (voiced by ): The Co-Leader of the Ninja Heroes. She is the (adoptive) older sister of the Turtles, as well as being the second oldest of the group. Her theme color is silver.
 * Jackson "Jack" Reilly (voiced by ): The Lone Wolf of the Ninja Heroes. He is the (adoptive) younger brother of the Turtles, as well as being the second youngest of the group. His theme color is green.
 * Basil "Basque" Stone (voiced by Khary Payton): The Heart of the Ninja Heroes. He is the (adoptive) older brother of the Turtles, as well as being the oldest of the group. His theme color is indigo.
 * Kusama Lane (voiced by Tania Gunadi): The Ray of Sunshine of the Ninja Heroes. She is the (adoptive) younger sister of the Turtles, as well as the youngest of the group. Her theme color is pink.
 * Hamato Yoshi/Master Splinter Sawyer (voiced by ): One of the leaders of the Hamato-Sawyer Clan who is a Japanese man mutated into an anthropomorphic rat.
 * Chang-Hamato Akari/Master Angela Sawyer (voiced by ): One of the leaders of the Hamato-Sawyer Clan who is a Chinese woman mutated into an anthropomorphic nine-tailed fox, and Splinter's new wife after Tang Shen was killed by Shredder.
 * April O'Neil (voiced by Lea Michele): A Caucasian-American teenage reporter who is one of the main companions of the TMNH. She is Leo's love interest in the series.
 * Robyn O'Neil (voiced by Kat Graham): An African-American teenage prodigy who is one of the main companions of the TMNH. She is April's adoptive older sister. She was the first one to befriend the Ninja Turtles. She is based on the incarnation of Robyn from the 2003 series and the incarnation of April from Rise of the TMNT.
 * Casey Jones (voiced by Josh Peck): The teenage son of a former NHL player at April and Robyn's school who Robyn is hired to tutor for an extra credit assignment. He is also known as a hockey-masked vigilante, armed with an assortment of sporting goods that he carries in a golf bag. He is a close ally of the Ninja Heroes. He has a crush on Buffy and a rivalry with Jack because of it. He's prone to recklessness but means well. He is a close brotherly figure to Raph due to both sharing an eagerness to fight.
 * Buffy Shellhammer (voiced by ): April and Robyn's best friend and classmate from high school.
 * Venus de Milo (voiced by ):
 * Cody Jones (voiced by ): Casey and Buffy's future son.
 * Starlee Hambrath (voiced by ):

Villains

 * Shredder (voiced by ): The main antagonist of the series, and leader of the Shredder Clan.
 * Krang (voiced by Mark Hamil): the other main antagonist of the series.

Trivia

 * This series shares some elements and inspirations from the 2003 series, the 2012 series, and the Rise of the Teenage Mutant Ninja Turtles series, as well as the TMNT summer shorts (especially Teenage Mecha Ninja Turtles).
 * In this series, Frida, Jackson, Basque and Kusama are half human half mutant with special mutant superpowers. They also have different theme colors, and slightly different personalities.