When he first appeared, Galdino was an average-sized man with a rather frail-looking build. Like other male Baroque Works, Mr. 3 has his number hidden somewhere on his costume. For Mr. 3 he both has 3's visible on his vest design, upper part of his glasses, and one big 3 achieved through his top knot. He also wears glasses and has neatly combed hair. He was also seen wearing a Log Pose on his left wrist. As a small form of comical relief, his hair seems to form various shapes according to the situation (like an "!" when he got scared or a "?" when he heard about Luffy for the first time and asked who Luffy was during the Little Garden arc, and even an arrow pointing to where he was talking about during the Impel Down Arc).