In general, it is not surprising that there are people who are similar in appearance, because similar features can be across the continent/country/or even certain regions (specifics of life). But it takes on great resonance when the star has a double. If you are interested in reading why doppelgangers exist, or a scientific study on the topic of cloning or mythological background, buy college research paper.
There are six billion people in the world, meaning, that are at least six other people who look exactly like you out there. So is it possible that some K-Pop idols can find their doppelgangers in the same industry? Here’s a list of idols/entertainers who look very similar.
[Girls Generation] Taeyeon and Renbutsu Misako
[EXO] Tao and Jung Joon Young
[JYJ] Junsu and [MyName] Insoo
Se7en and [VIXX] Hongbin
[F.T. Island] Lee Hong Ki and [MBLAQ] Mir
[A Pink] Eun Ji and [Girl's Day] Minah
[BPPOP] Inkyung and [Girls' Generation] Tiffany
[B1a4] Baro and [VIXX] Ravi
[BIGBANG] T.O.P. and [B.A.P] Himchan
[f(x)] Krystal and [Girls' Generation] Yoona
[SHINee] Taemin and [EXO] Kai
[U-Kiss] Kiseop and [Block B] Jaehyo
(Separated at birth!)