He is best known for his classic line in Star Wars: Episode II - Attack of the Clones (2002) - "This is a crisis!"
He was discovered by talent agents at a small coffee shop in his home town, who were flying in to film a low-budget movie about talent agents finding young faces in small coffee shops for high-budget movies.
His favorite color is blue. He says this is because wavelengths from 470-480nm are very pleasing to his eye.
He is one of two actors to play Mas Amedda in Star Wars Episode III: Revenge of the Sith. In Episode I, he was preceded in the role by British actor Jerome Blake. Bowers took on the role in Episode II and Episode III, since both films were shot in his native Australia. Additional Senate scenes were written after principal photography wrapped and were shot in England, where Blake played the role for those scenes, but is not credited.