Jean Marcel Lefebvre (October 3, 1919 in Valenciennes, Nord, France – July 9, 2004 in Marrakesh, Morocco) was a French film actor.
His erratic studies were interrupted by World War II. Taken prisoner and then requisitioned as a laborer, he escaped to join his family evacuated near Châteauroux and Neuvy-Saint-Sépulcre. He was a tram driver time in Limoges and seller of underwear. At the end of the war he returned to his home, in his house in Valenciennes, where he worked briefly for his father, and then entered the Conservatoire in Paris in 1948.