Roger Lumont was a French actor and voice actor born on February 21, 1934 in Les Lilas, Seine-Saint-Denis, France. Before pursuing a career in performance, he held small jobs while studying theatre, eventually joining the Cours Simon in 1960. In 1963, he received the first prize named after Marcel Achard, an honor he shared with Caroline Cellier. This recognition led to his involvement with La Grosse Valse, the theatrical troupe of Robert Dhéry, which also included the renowned comedian Louis de Funès. He appeared in small roles in several of de Funès's comedy films. Being fluent in English, Lumont also acted in American productions, including the Terence Young film Mayerling and Woody Allen's Love and War. Throughout the 1960s and 1970s, he built a career in French cinema playing numerous secondary roles, appearing in films such as Le Gendarme à New York and The Brain. He became a regular supporting actor for director Jean-Pierre Mocky, featuring in six of his films.

Parallel to his on-screen career, Lumont began voice acting in the late 1960s. He became a familiar presence in French-language dubbing, particularly in animated television series and films. His fluency in English was a significant asset in this field. One of his notable roles in anime was le Doge in the 1981 Franco-Japanese series Ulysses 31. He also voiced the characters of Perez and Kraka in the classic animated series The Mysterious Cities of Gold. Other significant animation roles from this period include Alain in Nobody's Boy Remi and Chief Quimby in the second season of Inspector Gadget.

In the realm of animated feature films, Roger Lumont is recognized for his extensive work on the Asterix series. He voiced several Roman centurions across four different films: Cylindric the German in The Twelve Tasks of Asterix, Briseradius in Asterix Versus Caesar, Stratocumulus in Asterix in Britain, and the centurion Caius Faipalgugus in Asterix and the Big Fight. He also performed the notable feat of voicing two main characters in the French dub of the Don Bluth film An American Tail, providing the voices for both the gentle Papa Mousekewitz and the villainous Warren T. Rat. He reprised the role of Papa Mousekewitz in the sequel, Fievel Goes West. His other dubbing work includes Dr. Laughton in the film Metropolis and the character of Dingo for a period.

Throughout his career, Lumont collaborated frequently with other French actors. He worked with Pierre Tornade on fifteen separate occasions and had more than ten collaborations with actors such as Dominique Zardi and Bernard Musson. Towards the end of the 1980s, he began to reduce his activity as both an actor and voice actor, transitioning towards work as a artistic director. Roger Lumont passed away on December 4, 2025.