The man known as "Dippy the Brush" was an art forger. He had light hair that he wore swept up in front.
Dippy was a part of Dab Stract's art theft ring. Dippy was responsible for copying several valuable works of art, under the guise of being a student in Pierre W. Easel's art school. Dippy and his accomplices would then replace the original artworks with his forgeries, then provide to originals to Dab Stract in exchange for a significant payment.
Dick Tracy set a trap for Stract and his accomplices when the thieves stole a valuable statue from the Smithsonian museum in Washington D.C. Dippy was arrested after delivering the statue to Stract's home.