korean ult actors & actresses :

ult actors

• gong yoo
• gang dongwon
• won bin
• ryu junyeol
• ju jihoon
• hwang jungmin
• cho seungwoo
• namgoong min

ult actresses :

• bae doona
• jeon doyeon
• kim okbin
• shin hyesun
• son yejin
• jun jihyun
• lee jieun (iu)
• kim taeri

semi ult actors & actresses :

• park jeongmin, lee jehoon, park haeil, jo insung, shin hakyun, choi minsik, sol kyunggu, lee sungmin, oh jungse, im siwan, tang joonsang, kyoo kyohwan, yoo seungho etc
• kim hyesoo, ha jiwon, gong hyojin, moon sori, han jimin, youn yuhjung, lee jungeun, kim sunyoung, kim heeae, jeon hyejin, lee youngae, esom, jeon jongseo, kim minhee etc

(not mentioning everyone because there's a lot more I like)