Ryoichi Hatayama (portrayed by Mackenyu Arata) is a character from the American science fiction monster filmPacific Rim Uprising (2018). Ryoichi is a cadet in the Pan Pacific Defense Corps, Renata's partner and cadet who piloted the Jaeger Saber Athena. He is a resident of Japan, and the son of an Interpol officer. During the Kaiju Wars, Ryoichi came face-to-face with a Kaiju and lived to tell the tale. According to his character poster, Ryoichi is skilled in "multiple martial arts".