Doh Kyung-soo (도경수; born January 12, 1993), known professionally as D.O. (디오), is a South Korean singer and actor under SM Entertainment. He is a member of the South Korean boy group EXO and its sub-group EXO-K.Apart from his group's activities, D.O. has starred in various television dramas and movies such as Pure Love (2016), My Annoying Brother (2016), Positive Physique (2016), Room No.7 (2017), 100 Days My Prince (2018), Along with the Gods: The Two Worlds, Swing Kids (2018) and Bad Prosecutor (2022).He made his solo debut on July 26, 2021 with his first mini album Empathy.

Não temos uma biografia para Shim Hye-jin.

Jung Chan Woo, conhecido pelo nome artístico Chan, é um cantor, ator e membro sul-coreano do grupo masculino iKON da YG Entertainment. Ele começou como ator infantil. Ele apareceu no videoclipe "Balloons" do TVXQ como o homólogo mais jovem de Changmin e também interpretou um jovem Lee Min Ho nos dramas "Boys Over Flowers" e "The Heirs".

Lee Si-young (born Lee Eun-rae on April 17, 1982) is a South Korean actress and amateur boxer. Born Lee Eun-rae in Cheongwon County, North Chungcheong Province, her family moved to Seoul when she was nine years old. Lee majored in Fashion Design at Dongduk Women's University, and later changed her name to Lee Si-young.

Kim Min-jung (Hangul: 김민정; born July 30, 1982) is a South Korean actress. Kim made her acting debut in 1988, at six years old, in the MBC Best Theater episode Widow. She then starred in numerous television dramas as one of the most in-demand and praised child actresses of her generation. As she grew up, she would become one of the few Korean child actors who successfully transitioned into adult roles. Kim's more notable TV series include Ireland, Fashion 70's, New Heart, Strike Love and The Thorn Birds. She has also appeared in films such as Flying Boys, Forbidden Quest and The Scam. In 2018, Kim was cast in Kim Eun-sook's romance melodrama Mr. Sunshine.