|Real name||Shigeru Nagashima|
|Nickname||Yūichi Nagashima (Former Stage Name)|
|Birthplace||Saitama Prefecture, Japan|
|Birth date||December 15, 1957 (age 57)|
His former stage name was Yūichi Nagashima (長島 雄一 Nagashima Yūichi) He has become synonymous with the character Chō that he played from 1984-1991 in the NHK children's show Tanken Boku no Machi, so in August 2006 he changed his stage name to Chō.