Kotaro Koizumi is an actor of 45 (10 juillet 1978). Kotaro Koizumi has appeared in 8 shows and 2 movies. A performance to be found in the role of Shuusuke Tsutsumi in the series Attention Please. In the cinema, in the role of Haruto Sutei in the feature film バスカヴィル家の犬 シャーロック劇場版.