Yūichi Nakamaru (中丸雄一, Nakamaru Yuuichi; born on September 4, 1983 in Kita-ku, Tokyo, Japan), is a Japanese singer-songwriter, actor, television personality and radio host under Starto Entertainment. He joined the talent agency Johnny & Associates in 1998 and then officially debuted as part of KAT-TUN in 2006, group to which he belonged until its disbandment in April 2025. Individually, he has acted in numerous drama serials and is most known as a commentator and host of his own segment on NTV information variety show Sunday Countdown Show Shūichi.
Source: “Yuichi Nakamaru”, English Wikipedia (CC BY-SA 4.0), excerpt