My Love From Another Star Cast and Characters

Kim Soo-hyun as Do Min-joon
A very cold and distant being, he loved a girl who lived during the Joseon Dynasty for liking him as his true self, an alien. After the girl dies from saving him, he waits to return home. Living a lonely and isolated life for centuries, he one day meets Cheon Song-yi, a girl who, at her young age, looked exactly like the one he cared for 400 years ago and whom he once saved




Jun Ji-hyun as Cheon Song-yi
A top Hallyu star who is very blunt and believes that she is every man's type, until she meets her stoic neighbor, Do Min-joon. She soon develops feelings for him and tries to make him fall for her.




Park Hae-jin as Lee Hwi-kyung
Song-yi's childhood friend who has an unrequited love for her. He believes one day she will love him, but decides to back down for a while, supporting her through thick and thin as a true friend.




Yoo In-na as Yoo Se-mi
Song-yi's childhood best friend. Underneath her sweet smile, she is actually very envious of Song-yi and has had a crush on Hwi-kyung for a long time. She later becomes famous after Song-yi's fall from the entertainment industry.




Shin Sung-rok as Lee Jae-kyung
Hwi-kyung's older brother, the potential heir of S&C Group. The main antagonist of the series, willing to do anything to silence Song-yi for a secret she knows about him.




Ahn Jae-hyun as Cheon Yoon-jae
Song-yi's younger brother, who first disapproves of her relationship with the neighbour but grows to likes Min-joon because of their shared interest in astronomy.




Kim Chang-wan as Jang Young-mok
Min-joon's lawyer. When he was young, He was saved by Min-joon from a suicide attempt and found out about his identity. He has been a loyal friend of him ever since.




Na Young-hee as Yang Mi-yeon: Song-yi's mother




Oh Sang-jin as Yoo Seok: Se-mi's older brother
A young and enthusiastic prosecutor looking into the Han Yoo-ra case. He gets to know about Do Min-joon's real identity.




Kim Hee-won as Park Byung-hee
A detective, who works together with Yoo Seok on the case of Han Yoo-ra. Knows about Do Min-joon's identity.




Jo Hee-bong as President Ahn: CEO of Song-yi's talent agency




Kim Kang-hyun as Yoon Beom: Song-yi's manager




Hong Jin-kyung as Bokja: comic book store owner/Song-yi's school friend




Kim Bo-mi as Min-ah: Song-yi's stylist




Lee Jung-gil as Lee Beom-joong: Jae-kyung's father, the chairman of S&C Group




Lee Il-hwa as Han Sun-young: Se-mi's mother




Sung Byung-sook as Hong Eun-ah: Hwi-kyung's mother




Uhm Hyo-seop as Cheon Min-goo: Song-yi's father




Lee Yi-kyung as Lee Shin: Lee Jae-kyung's secretary




Jo Se-ho as Chul-soo: comic book store customer/unemployed neighbor 1




Nam Chang-hee as Hyuk: comic book store customer/unemployed neighbor 2





Jo Seung-hyun as young Lee Hwi-kyung




Kim Hyun-soo as young Cheon Song-yi




Kim Hye-won as young Yoo Se-mi




Jeon Jin-seo as young Cheon Yoon-jae




Yoo In-young as Han Yoo-ra