Trivia

His father is veteran director and producer, Eul-young Jung.

During his freshman year at Chung-Ang University, he became roommates with an older theater major named Ha Jung-woo. Ha became a huge influence in Jung's life, and Jung later said he decided to become an actor after seeing Ha perform onstage.

Jung applied for and got accepted in the theater department of Chung-Ang University, regarded as one of the best in Korea, making it the dream college for aspiring actors.

His father was initially against his son pursuing acting, but Jung defied his father's wishes and moved out of the family home. Father and son did not speak for three years (they have since reconciled).