Arnaud Ducret as Pierre Lemarchal

Odile Vuillemin as Laurence Lemarchal

Mickaël Lumière as Grégory Lemarchal

Lou Gala as Leslie Lemarchal

Candice Dufau as Karine Ferri

Sofiane Francine as Sofiane

Ilona Bachelier as Lucie Bernardoni

Lucie Bernardoni as Self

Loïc Blanco as Matthieu Gonet

Alexis Loizon as Kamel Ouali

Michael Pinelli as le kiné Star Ac

Karin Martin-Prevel as Dominique, médecin Star Ac

Jean-Louis Tribes as Gérard Louvin

Anton Csaszar as Yvan Cassar

Alain de Catuelan as Pascal Nègre

Caroline Chirache as Alexia Laroche-Joubert

Raphaël Vache as Grégory Lemarchal (20 mois)

Johan Cardot Da Costa as Grégory Lemarchal (10/12 ans)

Joann Bliard as Grégory Lemarchal (14 ans)

Timéo Béasse as Grégory Lemarchal (14 ans)

Lena Goissaud as Leslie Lemarchal (6 ans)

Maelys Burdin as Leslie Lemarchal (10 ans)

Olivier Borle as Olivier Ottin

Nikos Aliagas as Self

Maxime Jullia as le kiné ami 1985

Emma Addis as la jeune fille ado muco

Michaël Maïnö as l'homme au parc

Amandine Longeac as une infirmière muco

Ugo Bajulaz as Mathieu, ado 2 muco

Thierry Rousset as un père Association Vaincre la Muco

Laurent Pasquier as un membre Association Vaincre la Muco

Franck Adrien as le médecin en 1985

Grégory Lemarchal as (évocation)

Léa Zerbib as