Karai, real name Miwa Hamato, is a secondary supporting character in My Little Pony: The Book of Golden Oak. She was originally the biological daughter of the late Tang Shen and Splinter, until she was kidnapped by the Shredder (Kevin Michael Richardson) and his men before the events of the series and raised her as his own "daughter". She made her first debut in season 1 episode 7 "Kunoichi in Peril". In season 2 episode 1 "Death of Splinter", she finally discovers of her true heritage in the Hamato Clan and the ninja turtles. She is voiced by Kelly Hu, who also voiced Stacy Hirano in Phineas and Ferb series (2007-2015) and D'Vorah in Mortal Kombat X.
- (last lines, spoken in Twilight Sparkle's ending) Now brave daughter. Return to your parents.
- (to Twilight Sparkle) Time is extremely cruel, and with it, I can't undo the past. I'm so sorry, Twilight.
- (last lines, spoken in her own ending) Let's go home, guys.
- Was sent by the Shredder to kill April O'Neil (Mae Whitman) before the events of My Little Pony: The Book of Golden Oak, but chose not to do so.
- Adoptive sister of Leonardo, Raphael, Donatello, and Michelangelo.
- Daughter of the late Splinter and Tang Shen.
- Friend of Shinigami (Gwendoline Yeo)
- Was defeated by Sweetie Belle (Claire Corlett) in My Little Pony: Tears to Magic.
- Was sent by Tiger Claw (Eric Bauza) to kill Leonardo before the events of My Little Pony: The Book of Golden Oak, but chose not to do so.
- Was sent by Ho Chan (James Hong) to kill Princess Cadence (Brittany McKillip) before the events of My Little Pony: Magic Art Online, but chose not to do so.