Shuichi Saihara has short dark blue hair with a small ahoge. Shuichi's ahoge moves or twitches around based on his mood or emotion. He has very pale skin and a slim figure. Shuichi has gold eyes and grey stripes over a black uniform with a white button-up shirt underneath. His pants match his uniform's design with the same thin, grey stripes, and he wears dark blue loafers. Shuichi is the mastermind of the Killing Game but acts like the Ultimate Detective. Shuichi is 5'7" or 171 cm.