한 Marker Marker (Marker) was a South Korean Male Artist. He started in group cotoba. He retired in 2022. Read All General Information International Stage Name : Marker Domestic Stage Name : Marker Full Name : Park Gyusan Pronounce Full Domestic Name : Pronounce 박규선 Country of Birth : South Korea Related Artists : cotoba - Instrumental Artist retired : 2022 Original group : cotoba (No longer a member) Images