Gus Bronko was a farmer in the rural area outside of Dick Tracy's city. He was an older man with light hair who typically wore dark glasses and a large hat.
When Dick Tracy was seeking information about the missing boy known as Peanutbutter, he inquired at Gus Bronko's animal farm. Bronko had no knowledge of the boy, but suggested that Tracy might ask his son, who operated a trash collection service in the area.