Kim Do-jin, professionally known as Won Bin, is a South Korean actor. He first gained wide popularity in 2000 after starring in the KBS's television series Autumn in My Heart. One of the most selective actors in the Korean entertainment industry, he has starred in only five films to date, Guns & Talks, Taegukgi, My Brother, Mother and The Man from Nowhere. He was Gallup Korea's Film Actor of the Year in 2010 and 2011.

Autumn in My Heart (Korean: 가을동화) is a 2000 South Korean romantic television drama starring Song Seung-heon, Song Hye-kyo, and Won Bin. The series is the first installment of season-themed tetralogy Endless Love drama series directed by Yoon Seok-ho. It aired on KBS2 from September 18 to November 7, 2000, on Mondays and Tuesdays at 21:55 (KST) for 16 episodes.