Tetsuro Hoshino is the main protagonist of the anime series Ginga Tetsudou 999, also known as Galaxy Express 999. He is a determined and brave young boy who dreams of obtaining a mechanical body to achieve immortality. Tetsuro embarks on a journey aboard the Galaxy Express 999, accompanied by the enigmatic Maetel. Throughout his travels, he learns valuable life lessons and discovers the true meaning of humanity and life. Tetsuro's character growth and his quest for understanding make him a central figure in the series.