Jaime Mainou was a Catalan comic artist, best known for his work for the German market in the 1970s. He began his career in the late 1950s, working for Rin-Tin-Tin and La Risa of Editorial Marco. In the 1960s, he worked for Bruguera, illustrating novels in the collection Héroes, among others. In the end of that decade, he focused on working for foreign publishers through the Bardon Art and Studio Ortega. He made stories with 'Laurel & Hardy' ('Dick & Doof') for the European market, and from the 1970s, he mainly worked for German publishers like Kauka and Bastei.
For Rolf Kauka, he illustrated his own creations, 'Oeste Moustache' and 'Pippin' in Primo and Fix und Foxi Extra, as well as some 'Lupo' comics. Mainou made a comics version of the television series 'Die Biene Maya', and has also done art on some 'Goofy' gags for the Scandinavian Disney publisher Gutenberghus (Egmont) in 1976-77. He additionally continued to work for Spanish publications like TBO and Trinca, illustrated coloring books and worked for the animation studios Rodamina and Acció.