His film debut won Nakamura a Best Newcomer award at the 2003 Japanese Academy Awards.
His height is 5' 9¾" (1.77 m).
He married Yuko Takeuchi on June 25, 2005. The couple has one son. On November 1, 2006 they got divorced.
Shidou's first film appearance was in the 2002 film Ping Pong, where he played a table tennis champion called Dragon.
Shidou made his Kabuki debut when he was only eight years old.