As the son of a German mother and Spanish father, Bernard Capo developed a passion for both comics and music in his childhood. After getting his degree, he went travelling through Europe and Africa. When he returned to France, he started singing in café-theatres, festivals, etc. In 1985, he founded the Association pour la Bande Dessinée du Centre (A.B.D.C.) and launched the fanzine L'Abédécé. In this fanzine, he wrote several articles and he made his first steps as a comics artist. At the same time, he became a press illustrator and caricaturist in La Nouvelle République du Centre-Ouest. In the same newspaper he started the comics series 'Loïc Francoeur', about a travelling singer. This series was later continued in Tintin.
From the mid-1980s, Capo illustrated numerous promotional comic books. With scenarist Guy Lehideux he created 'Avec Charette' at Triomphe publishers. In 1998 he teamed up with Rodolphe to create 'Les Teutoniques' at Téméraire publishers. In 2001 he started the 'Tombelaine' series with scenarist Gilles Chaillet. In 2004, he took over the artwork of Jacques Martin's 'Jhen' from Jean Pleyers.