'The Glory' features teen and adult versions of the main characters. These 6 side-by-side images show the uncanny resemblances.

Jung Ji-so (L) and Song Hye-kyo (R) play Moon Dong-eun in "The Glory."Graphyoda/Netflix

• "The Glory" is a Korean-language revenge drama on Netflix about school violence in South Korea.
• The show follows Moon Dong-eun as she exacts an elaborate revenge plan on her high school bullies.

Song Hye-kyo and Jung Ji-so play the adult and teenage versions of protagonist Moon Dong-eun, who seeks revenge on her high school bullies, respectively.

Song Hye-kyo (L) and Jung Ji-so (R) as adult and teenage Moon Dong-eun in "The Glory."      Graphyoda/Netflix

Lim Ji-yeon and Shin Ye-eun play adult and teenage Park Yeon-jin, the series' foremost antagonist.

Lim Ji-yeon (L) and Shin Ye-eun (R) as older and younger Park Yeon-jin in "The Glory."      Graphyoda/Netflix

Park Sung-hoon and Song Byung-geun play adult and teenage Jeon Jae-jun, a wealthy golf club owner.

Park Sung-hoon (L) and Song Byeong-geun (R) as Jeon Jae-jun in "The Glory."      Graphyoda/Netflix

Kim Hieora and Bang Gang-hee play the adult and teenage versions of artist Lee Sa-ra.

Kim Hieora (L) and Bae Kang-hee (R) as Lee Sa-ra in "The Glory."      Graphyoda/Netflix

Cha Joo-young and Song Ji-woo play adult and teenage Choi Hye-jeong, a flight attendant.

Cha Joo-young (L) and Song Ji-woo (R) as Choi Hye-jeong in "The Glory."      Graphyoda/Netflix

Kim Gun-woo and Seo Woo-hyeok play the older and younger versions of Son Myeong-o, Jae-jun's lackey.

Kim Gun-woo (L) and Seo Woo-hyuk (R) as Son Myeong-o in "The Glory."      Graphyoda/Netflix

Yeom Hye-ran plays housekeeper Kang Hyeon-nam, who helps Dong-eun in exchange for the killing of her own husband. She does not appear during the group's high school years.

Yeom Hye-ran as Kang Hyeon-nam in "The Glory.      Graphyoda/Netflix

Jung Sun-il plays construction mogul Ha Do-yeong, Yeon-jin's husband and Dong-eun's eventual opponent in the game Go. He does not appear during the group's high school years.

Jung Sung-il as Ha Do-yeong in "The Glory."      Graphyoda/Netflix

Lee Do-hyun plays Joo Yeo-jeong, a plastic surgeon who takes an interest in Dong-eun and teaches her how to play the game Go. He does not appear during the group's high school years.

Lee Do-hyun as Joo Yeo-jeong in "The Glory."      Graphyoda/Netflix

Oh Ji-yul plays Ha Ye-sol, Yeon-jin's elementary school age daughter. She was not yet born when the group was in high school.

Oh Ji-yul as Ha Ye-sol in "The Glory."      Graphyoda/Netflix