Suggestions by @kenshindendou

Lee Jung-jae

as Lee in Best Koreans by last names

Kim Ga-eul

as Kim in Best Koreans by last names

Huh Yunjin

as Huh in Best Koreans by last names

Hong Eunchae

as Hong in Best Koreans by last names

Kim Ha-ram

as Kim in Best Koreans by last names

Moonbyul

as Moon in Best Koreans by last names

Mun Ka-young

as Moon in Best Koreans by last names

Hwang In-yeop

as Hwang in Best Koreans by last names

Bae Doona

as Bae in Best Koreans by last names

Kim So-hyun

as Kim in Best Koreans by last names

Kim Bo-ra

as Kim in Best Koreans by last names

Minji

as Kim in Best Koreans by last names

Jay

as Park in Best Koreans by last names

Jay Park

as Park in Best Koreans by last names

Wendy (Shon Seung-wan)

as Son/Shon in Best Koreans by last names

Kim Chae-hyun

as Kim in Best Koreans by last names

Jake (Sim Jaeyun)

as Sim in Best Koreans by last names

Park Bom

as Park in Best Koreans by last names

Sandara Park

as Park in Best Koreans by last names

Jo Yu-ri

as Jo/Cho in Best Koreans by last names