Jean-Marc Barr (Jacques Mayol), Jean Reno (Enzo Molinari), Rosanna Arquette (Johana Baker), Paul Shenar (Dr. Laurence), Sergio Castellitto (Novelli), Jean Bouise (Uncle Louis), Marc Duret (Roberto) more..., Griffin Dunne (Duffy), Valentina Vargas (Bonita), Kimberly Beck (Sally), Alessandra Vazzoler (La Mamma), Andréas Voutsinas (Priest), Patrick Fontana (Alfredo), Geoffrey Carey (Supervisor), Jan Rouiller (Noireuter), Pierre Semmler (Franck), Pierre-Alain de Garrigues (Superintendent), Claude Besson (Jacques' Father), Bruce Guerre-Berthelot (Young Jacques), Gregory Forstner (Young Enzo), Eric Do (Japanese Diver), Jacques Lévy (Doctor), Paul Herman (Taxi Driver in U.S.A), Franco Diogene (Receptionist), Konstantin Aleksandrov (Dolphin Trainer), Luc Besson (Blond Diver (uncredited)), Valentina Castellani (Lady in Elevator (uncredited)), Christian Gazio (Wedged Diver (uncredited))

Carlo Varini (Director of Photography), Éric Serra (Original Music Composer), Patrice Ledoux (Producer), Olivier Mauffroy (Editor), Nathalie Chéron (Casting), Dan Weil (Production Design), Pierre Befve (Sound Designer) more..., Luc Besson (Story), Luc Besson (Screenplay), Robert Garland (Screenplay), Marilyn Goldin (Screenplay), Jacques Mayol (Screenplay), Marc Perrier (Screenplay), Luc Besson (Co-Producer), Magali Guidasci (Costume Design), Lissa Pillu (Casting), Mimi Lempicka (Costume Design), Patrick Barthelemy (Set Decoration), Geneviève Peyralade (Makeup Artist), Celestia Fox (Casting), Pat Orseth (Casting), François Groult (Sound Mixer), Gérard Lamps (Sound Re-Recording Mixer), Alain Lévy (Foley Editor), Jacques Lévy (Sound), Jérôme Lévy (Sound), Gary Marcus (First Assistant Director),