Popular South Korean actor best known for his Seoul Broadcasting System Drama Award-winning performance in the television series The Heirs. He is also known for his Asia Rainbow TV Award-winning role as Gu Wol-ryung in Gu Family Book. He has appeared in Fated to Love You and Emergency Couple.
He launched his acting career after winning the 2006 season of the Korean Broadcasting System's Survival Star Audition reality talent competition.
He appeared in several South Korean films, including The Divine Move and Love Clinique.
Born Kim Tae-ho in South Korea's South Jeolla Province, he later adopted the stage name of Choi Jin-hyuk. From 2011 until 2013, he was romantically involved with actress Son Eun-seo.
He appeared with fellow actor Lee Donghae in the Korean television series It's Okay, Daddy's Girl.