Vo filme Láska bez bariér hrajú Franck Dubosc (Jocelyn), Alexandra Lamy (Florence), Elsa Zylberstein (Marie, Jocelyn's secretary), Gérard Darmon (Max, Jocelyn's friend), Caroline Anglade (Julie, Florence's sister), Laurent Bateau (Lucien, Jocelyn's brother), Claude Brasseur (Jocelyn and Lucien's father), François-Xavier Demaison (The parish priest of Lourdes), Christophe Canard (Jacques), Clarisse Lhoni-Botte (Nike collaborator), Lika Minamoto (Rachida, young woman in Roissy), Christiane Millet (Mother of Florence and Julie), Francis Coffinet (Priest at funeral), Sabina Skalická (Aneta, hotel receptionist), Noémie Caillault (Policewoman at Orly), Dita Hořínková (Chorister at Prague restaurant), David Šír (Hotel concierge), Tomáš Trapl (Elvis lookalike singer), Philippe Vieux (Deaf neighbor), Emmanuelle Mörch (Florence's tennis opponent), Arnaud Rivaille (Jean-Luc), Jose Gaudin (Mathieu), Jean-Babtiste Alaize (Simon), Benjamin Bourgois (Marc), Gérard Lecaillon (Julie's father), Alexandre Triaca (Fred, Julie's uncle), Anca Beuran (Dance teacher), Jocelyne Sand (Blind woman with glasses), Franz Lery (Truck driver), Jana Altmannová (Old lady at the opera), Adèle Choubard (Young saleswoman), Joseph Hernandez (Seller in Lourdes), Philippe Sivy (Friend), Doriane Gable (Violinist), Christian Van Tomme (Violinist), Léticia Belliccini (The drunk girl (uncredited)), Sam Chemoul (Son of Fred and Coco (uncredited)), Gigi Dia (Woman dancing at the party (uncredited)), Manon Girardi (Heart attack woman (uncredited)), Margot Maricot (Jocelyn's aunt (uncredited)), Christian Miegakanda (Member of a funeral (uncredited)), Delphine Poudou (Aunty Coco (uncredited)), Timur Sibatov (Marathon Runner (uncredited)), Noémie Stevens (Brewery waitress (uncredited)), Marek Vašut (President of Sparta (uncredited)), Michel Chesneau ((uncredited)), Sonia Derory ((uncredited)), Carlos Fernandes ((uncredited)), Camille Zorel ((uncredited)).