Born in Codogno, after getting a degree of technical engineer at young age Uggeri was an actor and a production designer in a stage company.
[1] During the World War II he became a partisan in the Italian resistance movement, and captured by Germans he was interned for two years in the Dachau concentration camp.
[2] Freed in 1945, the same year he started his career a comics artist, realizing the series Revegant for Torelli Editore.
[1] In 1947 he created the comic strip Le avventure del partigiano Pesce for the newspaper Milano Sera [it], and in 1949 he started his most successful character, Rocky Rider, published in the magazines Intrepido and Il Monello until 1963.
[1] He also collaborated with Sergio Bonelli Editore, illustrating the comic series Ipnos, Yuma Kid and several episodes of Tex.