By Dramabeans
Hello? It's Me!
Lee Hyun-seok
Yoo Song-yi
16
70 minutes (KBS2) 60-65 minutes (Netflix)
KBS2
South Korea
Korean
Source: Wikipedia
Oh Ji-eun, Do-yoon's wife Lee Seo-yeon as young Ji-eun, Ha-ni's sidekick
Han Ji-man, Yoo-hyun's father
37-year-old Ban Ha-ni Lee Re as 17-year-old Ban Ha-ni
Min Kyung-shik, Ahn So-ni's manager
17-year-old Ban Ha-ni
Han Yoo-hyun Choi Seung-hoon as young Yoo-hyun
Police officer(Ep. 1)
Young-goo
Park Jung-man, CEO of The Point Entertainment
Yang Do-yoon, Yoo-hyun's cousin
Writer Kim (Ep. 4)
Kim Yong-hwa
Bang Ok-joo
Go So-hye
Han Ji-sook, Yoo-hyun's aunt
Anthony / Yang Chun-sik Kim Sang-wo as young Chun-sik
Young Yoo-hyun
Cha Mi-ja
Cha Seung-seok
Store manager (Ep. 1-2)
Police officer(Ep. 1)
Ji Ok-jung, Ha-ni's mother
Chae Seong-woo, Ha-young and Chi-su's son
Lee Hong-nyun, Ha-ni's grandmother