Koichi Iwaki has appeared in 7 movies.
These include The Machine Gun Dragon, Detonation: Violent Riders, The Second Is a Christian, Silver Hawk, The Mole Song: Undercover Agent Reiji, Kewaishi and Festival Champ.Koichi Iwaki has appeared in 3 TV Series.
These include 상처와 의리, The Thorns of Alice and Kurohyō: Ryū ga Gotoku Shinshō.