Akito Kiriyama

as Eiji Arima (11 episodes)

as Utage

as Self

as Hasegawa Teruhiko [Neurosurgeon] (10 episodes)

as Hoshino Kensaku [young]

as Kenta Sarukawa (12 episodes)

as Kakeru Shigeoka (8 episodes)

as Shougo Hitomi (9 episodes)

as Shirooka Eisaburo (156 episodes)

as Hiroki Yanagi (8 episodes)

as Ioka Yuuki (1 episode)