Raúl Bratesko Serano is a Chilean comic artist, who was a longtime assistant of comic artist Vicar. He was editor, layout designer and cartoonist for the newspaper Clarín from the 1960s to 1973. He was hired by Pepo to work on the 'Condorito' comic in 1973 and at the same time, he made his first Disney covers for the Pincel titles Tío Rico and Disneylandia.
Undoubtedly inspired by Roba's 'Boule et Bill', he created his own comic called 'La Patota', about a group of children and their pet dog Pirata. Bratesko became the assistant of Disney artist Vicar in the early 1980s and has worked on more that 10.000 pages of 'Donald Duck' stories for Gutenberghus/Egmont in Denmark. He stayed with Vicar's studio until the latter's death in early 2012.