Park Hoon began his acting career on stage before landing his first screen appearance in the 2008 horror film Death Bell. In 2015, he played Han Ye-ri’s brother in the SBS sageuk Six Flying Dragons. In 2016, he worked with Song Joong-ki and Song Hye-gyo in the hit KBS2 series Descended From the Sun. That same year, he also had small roles in the MBC dramas All’s Well With a Happy Home and Monster. In 2017, he joined the main cast of the KBS2 miniseries Naked Fireman. In 2018, he worked with Hyun Bin and Park Shin-hye in tvN’s Memories of the Alhambra, which earned him a Best New Actor nomination at the 55th Baeksang Arts Awards. In 2019, he was cast as one of the main characters in the SBS sageuk Haechi, which scored him a Best Supporting Actor nomination at the SBS Drama Awards. In 2020, he was nominated for an Excellence Award at the SBS Drama Awards for Nobody Knows.

Park Hoon is married to actress Park Min-jung.