Kentarō Kobayashi(小林 賢太郎Kobayashi Kentarō, born 17 April 1973) is a Japanese comedian, actor, dramaturge, theatre director, and manga artist. He is most well known in the United States for directing and acting in "The Japanese Tradition(日本の形)" videos (e.g. "Sushi(鮨)"), and for playing the Mac (opposite Jin Katagiri who plays the PC) in the "Get A Mac" advertising campaign in Japan. He is a member of the Rahmens owarai comedy duo. His manga series, Hana Usagi, ran from 1999 to 2004 in Young Magazine Uppers (published by Kodansha).