The actor was born in January 1994 and is part of the huge agency Sidus HQ with Kim YooJung, Jo BoAh, Oh YeonSeo, Park SunHo, etc. His previous stage name was Park SeulMaRo (박슬마로).

He debuted in 2015 in the music video of TaeiK for 'I'll Tall U'.

Since he debut, he had acted in a lot of web dramas including: "Find My Brother", "No Time for Love", "The Numerous Seas of Jeju Island", "Stand by Curator", "Stanger Kim", and "Today too Tuna and Mayonnaise". Park SangNam also acted in the dramas "Age of Youth" (2016) his first-ever role in a drama, "My Sassy Girl" (2017), and "Big Issue" (2018). as minor roles.