Teenage Mutant Ninja Turtles Notes from the Underground: Part 3 (Season 1, Episode 15)
TV-Y7
TV Episode | 22 min | Animation, Action, Adventure

Primary photo for Notes from the Underground: Part 3

Teenage Mutant Ninja Turtles

Notes from the Underground: Part 3 (Season 1, Episode 15)

TV-Y7

TV Episode | 22 min | Animation, Action, Adventure

The source of the crystals are found in an ancient subterranean city. The city is inhabited by the sole survivor of an ancient race, who he claims wanting to return the creatures to their original form, his true intentions remain unknown.

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Cast	+ Add Cast
9 cast members

Name	Known for
Michael Sinterniklaas Leonardo (voice) (as Mike Sinterniklaas) Leonardo (voice) (as Mike Sinterniklaas) See fewer	Your Name. (2016)
Wayne Grayson Michelangelo (voice) Michelangelo (voice) See fewer	Teenage Mutant Ninja Turtles (2003)
Sam Riegel Donatello (voice) Donatello (voice) See fewer	The Legend of Vox Machina (2022)
Gregory Abbey Raphael (voice) (as Frank Frankson) Raphael (voice) (as Frank Frankson) See fewer	Bull (2016)
Darren Dunstan Splinter (voice) Splinter (voice) See fewer	Teenage Mutant Ninja Turtles (2003)
Eric Stuart Quarry (voice) Quarry (voice) See fewer	Yu-Gi-Oh!: The Dark Side of Dimensions (2016)
Veronica Taylor April O'Neil (voice) April O'Neil (voice) See fewer	Pokémon: The First Movie - Mewtwo Strikes Back (1998)
David Zen Mansley The Entity (voice) The Entity (voice) See fewer	Terminator 2: Judgment Day (1991)
Megan Hollingshead Sydney (voice) Sydney (voice) See fewer	Pokémon: The First Movie - Mewtwo Strikes Back (1998)