Alliés
Personnages | Version originale | Version française | Première apparition |
| Leonardo | Ben Schwartz | Stéphane Marais | S1 E1 |
| Raphael | Omar Miller | Frédéric Popovic | S1 E1 |
| Michelangelo | Brandon Mychal Smith | Bruno Méyère | S1 E1 |
| Donatello | Josh Brener | Aurélien Ringelheim | S1 E1 |
| Hamato Yoshi / Lou Jitsu / Splinter | Eric Bauza | Antoine Tomé (Splinter) Olivier Jankovic (Lou Jitsu) | S1 E1 |
| April O’Neil | Kat Graham | Fanny Bloc | S1 E1 |
| Casey Jones | Haley Joel Osment | Gabriel Bismuth-Bienaimé | Film |
Krangs
| Krang One | Jim Pirri | Eric Peter | Film |
| Krang Two | Toks Olagundoye | Eric Peter | Film |
| Krang Three | – | – | Film |
Autres personnages
Personnages | Version originale | Version française | Première apparition |
| Bishop | – | – | Film |
| Cassandra « Casey » Jones | – | – | S1 E22 |
| Earth Protection Force | – | – | Film |
| Foot lieutenant | Rob Paulsen | Jean-François Pagès | S1 E2 |
| Foot brute | Maurice Lamarche | Olivier Cordina | S1 E2 |
| Mezmer-Ron / Hypno-Potamus (Mesmer-AldaVF / Hypno-Potamus) | Rhys Darby | Jean-François Pagès | S1 E5 |
| Todd Capybara | Thurop Van Orman | Olivier Jankovic | S1 E6 |
| Warren Stone | John Michael Higgins | Fabrice Fara | S1 E5 |