Surely Tomorrow cast and characters: Here's who brought the latest K-drama to life

Surely Tomorrow is a story that starts with emotion, memory, and the subtle heaviness of time. The South Korean romance drama, which premiered on JTBC on 6th December 2025, opens a world of a tale revolving around the past and present.

A brief of Surely Tomorrow

The South Korean television series called Surely Tomorrow was released by JTBC on the 6th of December 2025. It can be watched every Saturday and Sunday at 22:40 KST until the 11th of January 2026. The drama is also available to view on Prime Video in some areas, giving overseas viewers the opportunity to keep track of its weekly release.

The series is under the direction of Lim Hyun-wook, written by Yoo Young-ah, and produced by SLL, Story Forest, and Studios IN.

Genre and story

Surely Tomorrow is designated to be a romance series according to its official sketches. The plot of the drama revolves around two characters whose past catches up with them.

The drama forms through the gradual unravelling of emotions, conversations, and interpersonal changes.

However, Surely Tomorrow does insist on the themes of the right time, distance in emotions, and the difficulty of getting back together after years. The show talks through characters' little moments and their memories, slowly but surely leading the audience to comprehend the emotional stakes that are at risk.

Park Seo-joon as Lee Gyeong-do

In Surely Tomorrow, Park Seo-joon plays the role of Lee Gyeong-do, the leading male character of the series. The official descriptions do confirm that Lee Gyeong-do is a reporter working for Dongwoon Ilbo.

His role is brought to the forefront of the story when he runs into a former lover. The character of Lee Gyeong-do is made a little more complex by the show's use of his time and experiences. Such emotional states or perceptions dictate how the story is told, or rather, the drama is internalized rather than being expressed through professional conflict.

Won Ji-an as Seo Ji-woo

Won Ji-an is the female protagonist across from Park Seo-joon in Surely Tomorrow. She takes on the role of Seo Ji-woo, a lady who has a very close romantic past with Lee Gyeong-do.

Seo Ji-woo gets back together with Gyeong-do due to complicated events. The bond these two characters share is the main element of Surely Tomorrow; their ways of communicating are what bring back the old feelings and the emotional ties that have lasted long.

Relationship at the center of Surely Tomorrow

The drama is built on the relationship development between Lee Gyeong-do and Seo Ji-woo. Their past together and the present-day relationship interactions are the main narrative line of the series.

The relationship takes its time to explore rather than being resolved straight away. The drama gives a lot of importance to emotional unexpressiveness, silence, and meditation as the elements that determine the story's mood and the way it goes.

Supporting cast in Surely Tomorrow

Surely Tomorrow not only brings its main actors into play but also involves a supporting cast that adds to the emotional and social surroundings of the series. The official listings mention the supporting cast to be:

Lee El
Lee Joo-young
Kang Ki-doong
Jo Min-gook
Nam Gi-ae
Kang Mal-geum
Kim Mi-kyung
Jeong Ha-jin

These characters strengthen the main storyline by giving the lead couple context, relationships, and viewpoints that are around them. Although very little information about specific roles is available, their presence is what makes the world of Surely Tomorrow bigger.

Special appearances

Surely Tomorrow also has special appearances of actors whose roles are limited to certain episodes. The actors are:

Go Bo-gyeol, Kim Ji-woong, and Kim Sung-kyun

These actors play those moments in the story that need the strongest support without drawing attention away from the main romance.

Episode schedule and broadcast details

The broadcast schedule of Surely Tomorrow is a classic weekend style.

Network: JTBC

Airs: Saturday and Sunday

Time: 22:40 KST

Premiere: December 6, 2025

Finale: January 11, 2026

Streaming availability

Besides its native airing, Surely Tomorrow is also on Prime Video in a few international markets. The global audience can watch the series at the same time as the original JTBC broadcast, in selected countries.

Creative team behind Surely Tomorrow

The series is helmed by Lim Hyun-wook, who previously worked on King the Land and Reflection of You.

The screenplay is written by Yoo Young-ah, who is known for her works in Encounter and Thirty-Nine. The dialogues in her scripts are mostly introspective, and the story told through them is very relatable; these two aspects are clearly seen in Surely Tomorrow.