Heo Nam-jun (born June 9, 1993) is a South Korean actor. After making his debut in 2019, he gained widespread public attention for his standout performance as a ruthless antagonist in the thriller Your Honor (2024). He quickly established himself as a versatile leading man, starring in the thriller-romance When the Phone Rings (2024–2025) and anchoring the hit SBS fantasy romantic comedy My Royal Nemesis (2026).

Filmography

• My Royal Nemesis — Cha Se-gye / Yi Hyeon
• Perfect Crown — Kim Yeon-jun
• A Hundred Memories — Han Jae-pil
• The Dream Life of Mr. Kim — Na Dae-ryong
• When the Stars Gossip — Lee Seung-jun
• 2024I, the Executioner — Special Detective
• The Impossible Heir — Ha Myung-Jin
• When the Phone Rings — Ji Sang-woo
• Your Honor — Kim Sang-hyeok
• The Matchmakers — Jeong Soon-koo
• 2021Double Patty — Han Sang-wook
• 2021Hostage: Missing Celebrity — New Killer Actor
• Snowdrop — Oh Gwang-tae
• Missing: The Other Side — Ko Bong-hwan
• 2020Night in Paradise — Gang Boss Yang's Subordinate
• Sweet Home — Kang Seok-Chan
• XX — Former Employee
• 2019The First Shot — Manager Joo
• Whale Star: The Gyeongseong Mermaid — Song Hae-su
• 화폐개혁 — Yu Il-han

Appearances as themselves (4)

• Every Village Needs Grandchildren — Self
• Yoobari Talkbari — Self
• Hong Seok-cheon's Jewelry Box — Self
• Salon Drip — Self