When The Stars Gossip Cast & Character Guide

Netflix’s romantic comedy,When the Stars Gossipfeatures a large ensemble of actors who give great performances. Directed byIt’s Okay to Not Be Okay’s Park Shin-woo,the romantic K-dramafollows the love story between a space tourist and an astronaut.When the Stars Gossipis also the first Korean Earth-to-space romance and includes stunning visuals, complex characters, and an engaging plot.

TheNetflix K-dramapremiered on the streaming platform on June 30, 2025, with two new episodes planned to release on Saturday and Sunday every week.When the Stars Gossiphas 16 episodes, which will delve further into the space romancewith the finale set for the end of February. K-dramas are famous for having incredible characters, andWhen the Stars Gossipis no exception.

Lee Min-ho As Gong Ryong

Date Of Birth: August 11, 2025

Actor:Born in Seoul, South Korea,Lee Min-ho is a versatile actor whose breakout role was Gu Jun-pyo in the popular romantic K-drama,Boys Over Flowers. The singer and actor is best known for starring inThe Heirs,The King: Eternal Monarch,Pachinko,City Hunter, andThe Great Doctor. Although Min-ho is famous for starring in romantic K-dramas, he has shown he has range by taking on more complex roles.

Personal Taste

Jeon Jin-ho

Character:Gong Ryong is one of the primary protagonists inWhen My Stars Gossip. The OB-GYN, who is engaged to Choi Go-eun, goes to the space station as a tourist. Unbeknownst to the other people there, Ryong has a secret reason for his visit.

Gong Hyo-jin As Eve Kim

Date Of Birth: June 28, 2025

Actor:Gong Hyo-jin was born in Seoul, South Korea. The actormade it big after playing Yang Mi-sook inCrush and Blush. Hyo-jin is famous for her roles inWhen the Camellia Blooms,The Greatest Love, andMissing Woman. She’s also appeared in other movies and TV shows, such asCrazy Romance,Don’t Dare to Dream,The Master’s Sun, andIt’s Okay, That’s Love.

Crush and Blush

Missing Woman

Han-mae

Character:Gong takes on the role of Eve Kim inWhen the Stars Gossip. Kim is a Korean-American astronaut leading her first space mission, a perfectionist who wants everything to go just as she plans it to.

Han Ji-eun As Choi Go-eun

Date Of Birth: June 10, 2025

Actor: Han Ji-eun got her big break inBe Melodramatic, in which she plays Hwang Han-joo. She is now known for her roles inTrain to Busan,Bad and Crazy, andRampant. She’s also appeared inStock Struck,Kkondae Intern, andLovestruck in the City.

Lovestruck in the City

Bad and Crazy

Train to Busan

Earphone Woman

Character:Choi Go-eun belongs to one of the most powerful and wealthy families in South Korea, MZ Group. Go-eun is engaged to Gong Ryong and is also the CEO of MZ Electronics.

Oh Jung-se As Kang Kang-su

Date Of Birth: July 23, 2025

Actor:Rounding out the main cast ofWhen the Stars Gossipis Oh Jung-se. The actor was born in Uiryeong County, South Gyeongsang Province, South Korea.Oh Jung-se gained acclaim for his work inFabricated City,in which he took on the role of Min Cheong-sang. He is mostly recognized for his roles inThe Call,It’s Okay to Not Be Okay, andWhen the Camellia Blooms. However, he’s also starred inMr. Plankton,Sweet Home, andRevenant.

Fabricated City

Min Cheong-sang

Character:Oh plays Kang Kang-su inWhen the Stars Gossip. Kang-su is one of the most experienced scientists who’s been on the space station for 10 months. While there, Kang-su kept himself busy studying fruit flies.

When The Stars Gossip Supporting Cast & Characters

When The Stars Gossip’s Drama & Romance Is Supported By Its Supporting Characters

Heo Nam-joon as Lee Seung-joon:Born on July 23, 2025 in South Korea, Heo Nam-joon is mostly recognized for his roles inWhen the Phone Rings,The Matchmakers,Sweet Home, andSnowdrop.

Lee Cho-hee as Dona Lee:Lee Cho-hee is a South Korean actor famous for starring inOnce Again,Six Flying Dragons,Maids, andWonderful Days.

Alex Hafner as Santiago Gonzalez:Since starting his acting career in 2012, Alex Hafner has had roles in several movies and TV shows, includingCable Girls,Vampire Academy,The Mallorca Files, andLet It Snow.

Kim Ju-hun as Park Dong-ah:The renowned South Korean actor, Kim Ju-hun, plays Park Dong-ah inWhen the Stars Gossip. He is mostly recognized for his roles inMissing Crown Prince,Big Mouth,Train to Busan, andNow We Are Breaking Up.

Lee El as Kang Tae-hee:Born in Seoul, South Korea, Lee El’s acting career dates back to 2009. She starred inThe Call,Happy Battle,When the Devil Calls Your Name, andGuardian: The Lonely and Great.

Park Ye-young as Ma Eun-soo:Following her acting debut in 2013, Park Ye-young has had roles inHometown Cha-Cha-Cha,A Wonderful Sight,Captivating the King, andSummer Strike.

Lee Hyun-kyun as Han Si-won:Lee Hyun-kyun takes on the role of Han Si-won inWhen the Stars Gossip. Lee is best known for his roles inParasyte: The Grey,Emergency Declaration,Dark Hole, andMy Country: The New Age.

Kim Eung-soo as Choi Jae-ryong:Born in Seocheon County, South Chungcheong Province, South Korea, Kim Eung-soo began his acting career in 1996. He’s since starred inOnce Upon a Time,Delayed Justice,Lady Cha Dal-rae’s Lover, andMr. Sunshine.

Baek Eun-hye as Na Min-jung:Baek Eun-hye has had roles in several movies and TV shows, includingSell Your Haunted House,The Good Detective, andWhat’s Wrong With Secretary Kim.

Kim Kyung-duk as Secretary Go:Kim Kyung-duk is a South Korean actor known for his roles inThe Bad Guys: The Movie,Start Up, andUnidentified.

Jung Young-joo as Jung Na-mi:Best known for her roles inBadland Hunters,When Flowers Bloom, andSignal, Jung Young-joo takes on the role of Jung Na-mi inWhen the Stars Gossip.

Jeon Soo-kyeong as Ji Hwa-ja:Taking on the role of Ji Hwa-ja is the South Korean actor Jeon Soo-kyeong, whose acting career includes roles inChicago Typewriter,Okay Madam, andMelting Me Softly.

Choi Jung-won as Jang Mi-hwa:Choi Jung-won is best known for starring inStarting Point ofDatingandThree Men.

Im Seong-jae as Jeon Yi-man:Born on August 15, 2025, the South Korean actor has had roles inExtraordinary Attorney Woo,Gangnam B-Side, andHellbound.