Prior to his debut, Heo studied in
Sungkyunkwan University and completed a degree in acting. Heo debuted in 2019 through the movie
Like the First (2019). His first drama appearance was in OCN drama
Missing: The Other Side (2020). Heo would go on to play supporting roles in dramas such as
Snowdrop (2021);
The Matchmakers (2023);
Sweet Home Season 2 and 3 (2023–2024); and
The Impossible Heir (2024), as well as movies like
Night in Paradise (2020);
Double Patty (2021); and
I, the Executioner (2024). In 2024, Heo portrayed a cold-blooded gangster and murderer named Kim Sang-hyuk – the eldest son of
Kim Myung-min's character Kim Kang-heon – in
Your Honor, a role which garnered Heo increased public attention. During that same year, Heo portrayed Ji Sang-woo, a warm-hearted psychiatrist and YouTuber who specialized in unsolved cases in
When the Phone Rings. The drama itself was a commercial success and received positive reviews. Heo was also awarded the Best New Actor Award from the
2024 MBC Drama Awards for his outstanding performance in the drama. Heo was cast in
TvN drama
When the Stars Gossip (2025), which was first broadcast on January 4, 2025. ==Filmography==