Takayuki Yamada is a Japanese actor, singer, and producer. He is best known for his role as Sakutaro Matsumoto in TV drama Socrates in Love and as Densha Otoko in the 2005 film of the same name. Yamada gained international popularity through his portrayal as Tamao Serizawa in Crows Zero film series. Japanese media often dubs him as chameleon actor for his wide acting spectrum throughout his career. He began venturing as producer with live-action web series Saint Young Men. Since 2018 he releases music as the lead singer of band The XXXXXX.

Socrates in Love is a 2001 Japanese melodrama novel, written by Kyoichi Katayama and published by Shogakukan, which revolves around narrator Sakutaro Matsumoto's recollections of a school classmate whom he once loved.