The K.O. cast features Ciryl Gane, Alice Belaïdi and Foued Nabba. This info article contains minor spoilers and character details for Antoine Blossier’s 2025 Netflix movie. Check out more cast guides in Vague Visages’ Know the Cast category.

K.O. takes place in France. After an MMA fighter named Bastien kills an opponent in the ring, he struggles to find peace. The narrative follows the main protagonist as a widow enlists him to track down her missing son. Here’s every actor and character in K.O.

Read More at VV — Know the Cast: ‘Rebel Ridge’

K.O. Cast: Ciryl Gane as Bastien

Character Profile: A former MMA fighter. He struggles emotionally after inadvertently killing an opponent. Bastien bonds with his victim’s son upon locating him in Marseilles.

Gane’s Resume: An MMA Fighter — Also, Douanier #2 in The Misadventures of Hedi and Cokeman (2021), Champion MMA in Medellin (2023), Himself in All-Time High (2023), Pape in Den of Thieves: Pantera (2025)

Read More at VV — Know the Cast: ‘Counterattack’

K.O. Cast: Alice Belaïdi as Kenza

Character Profile: A police captain whose brother was murdered by French gangsters. She vows to take down a crime organization. Kenza learns about a mole in her unit.

Belaïdi’s Resume: Nassima in Radiostars (2012), Marcelle in If I Were a Boy (2017), Alyson Lévêque in Hippocrate (2018-21), Nora in Black Butterflies (2022), Leïla in Drone Games (2023)

Read More at VV — Know the Cast: ‘Back in Action’

K.O. Cast: Foued Nabba as Abdel Manchour

Character Profile: A French gangster. He is a ruthless man who tortured and killed Kenza’s brother. Abdel gets seen killing a man by the son of Bastien’s MMA victim.

Nabba’s Resume: A Popular Musician — Also, Reda in Chouf (2016), Homme TMAX Castellane in The Stronghold (2020), Carapuce in Wingwomen (2023), Kamel Saïdi in Blood Coast (2023)

Read More at VV — Know the Cast: ‘Exterritorial’

K.O. Cast: Maleaume Paquin as Léo

Character Profile: The son of Bastien’s MMA victim. He becomes Kenza’s police information in Marseilles. Léo vows to never forgive Bastien.

Paquin’s Resume: Damien à 10 ans in La Mante (2017),  Rémi in Remi, Nobody’s Boy (2018), Théo in Of Love and Lies (2019)

Read More at VV — Know the Cast: ‘Havoc’

The K.O. cast also includes:

• Ibrahima Keita as Driss Manchour
• Anne Azoulay as Emma
• Samuel Jouy as Commissaire Daniel Canistra
• Virgile Bramly as Capitaine Vasseur
• Malone Ettori as Benoit
• Nafy Souare as Inaya
• Maëva El Aroussi as Fatou
• Milan A. as Enzo
• Enzo Marzanato as Hugo
• Emmanuel Bonami as Coach
• Ahmed Korchi as Arbitre
• Laurent Demianoff as Patron discothèque

Q.V. Hough (@QVHough) is Vague Visages’ founding editor.