Set to premiere in 2026, Yumi’s Cells Season 3 continues the heartfelt story of Yumi, now a celebrated author, and her quirky, lovable cells as they navigate life, love, and personal growth in this unique slice-of-life romance series.
The Yumi’s Cells franchise has captured audiences worldwide with its innovative blend of live-action and 3D animation, based on the wildly popular webtoon. Kim Go Eun returns as Yumi, delivering another standout performance that has earned praise from fans and critics alike.
In an exciting casting update, rising star Kim Jae Won steps into the role of the new male lead, taking over from Ahn Bo Hyun’s Goo Woong (Season 1) and Park Jin Young’s Yoo Babi (Season 2). With four years of acting experience, Kim has impressed audiences with memorable roles in hits like tvN’s Our Blues, JTBC’s King the Land, and The Tale of Lady Ok.
Kim Jae Won plays Soon Rok, a producer at Julie Publishing’s editorial department, who finds himself navigating uncharted territory as he works closely with the now-famous writer Yumi. Although Yumi has realized her dream of becoming a novelist, she still struggles with matters of the heart. The chemistry between Kim and Kim Go Eun, amplified by their 10-year age difference, promises a fresh and captivating dynamic.
Adding new energy to the cast, Choi Daniel joins as Kim Ju Ho, the star author at Julie Publishing and an outgoing personality. This character, created exclusively for the show and absent from the original webtoon, is expected to bring a dose of unexpected humor and intrigue to the story.
Supporting roles include Cho Hye Jung as Baek Na Hee, Yumi’s assistant writer, and Park Se-in as PD Jang, Yumi’s manager. Fan-favorite Miram returns as Aida, Yumi’s loyal best friend, delighting longtime viewers.
Jeon Seok Ho reprises his role as Ahn Dae Yong, Yumi’s mentor and Aida’s husband. Sung Ji Ru is back as Kim Man Sik, Yumi’s well-meaning but sometimes exasperating father. Meanwhile, the charming Lee Ru By and Lee Yu Bi return to captivate audiences once again with their magnetic performances.
