Bob De Moor was born in Belgium on December 20, 1925 as Robert Frans Marie De Moor. He started drawing at a very early age, sketching the ships in Antwerp harbor. After graduating from the Antwerp Academy Of Fine Arts, he started working at the Afim animations studios. After drawing several strips for various magazine in Flemish and releasing a French language album, he starts working for Kuifje, the Flemish version of Le Journal De Tintin in 1949 before joining the French edition as well that same year. The following year, at 25, he integrates the Studios Hergé and quickly becomes the legendary master's most trusted collaborator following Edgar Pierre Jacobs' departure. A master of the "ligne claire" style of drawing, he supervises all the ancillary drawings of Tintin, the animated films and works on the updated edition of L'Île Noire. A project to revive Les Aventures De Jo, Zette & Jocko by adapting a discarded Tintin story is never completed and following Hergé's death he dreams of finishing the famous reporter's last incomplete adventure, Tintin Et L'Alph-Art but after much hesitation, Hergé's widow declines. He did however complete Les 3 Formules Du Professeur Satō, the Blake Et Mortimer story left unfinished by Jacobs after his death. De Moor died in Brussels a couple of years after completing this work, on August 26, 1992. He was 66.
Although he is best remembered for his collaborations with other masters, which apart from Hergé and Jacobs include Jacques Martin and childhood friend Willy Vandersteen, he created a number of characters of his own, the most notable of which are Barelli and Cori Le Moussaillon. His son Johan followed in his father's footsteps and is a noted comic book artist himself.