Aquarion (2005)

Name: Aquarion
Genre: Animation, Action & Adventure, Drama, Sci-Fi & Fantasy
Cast: Sanae Kobayashi, Masaya Onosaka, Tomokazu Sugita, Daisuke Sakaguchi, Nobunaga Shimazaki

Set in the future, a giant fighting machine called the Aquarion is humanity's only effective weapon in the fight against the technologically advanced species called the Shadow Angels.