You are correct with KARD Girls' names. Neither of the girls participated in the MV. Somin is not an actress but her face, I think, is generic. She looks like a combination of Hyuna and Goo Hara. She was also a former member of Purrety, then April, then became a KARD member. Glad you liked the performance with them!
Lemon Prince I think the word/phrase you’re looking for is that Somin fits Korea’s beauty standards for an actress and not that her face is generic haha. Although even putting it that way is saying her face is generic. Let’s just say that her face is common amongst Korean actresses so that’s why they probably thought they’ve seen her in a drama. And OMFG! She does look like Hyuna’s and Goo Hara’s love child lol
