Jin Ki-joo was previously an employee of
Samsung SDS for three years, before working as journalist for
Seoul Broadcasting System regional affiliate
G1, before starting her acting career. After Jin won a prize in the 23rd Supermodel Contest, the organizer introduced her to some management companies for actors. Her acting debut was in
tvN's 2015 romantic comedy
television series Second 20s. In 2018, Jin's breakthrough year. She got nominated and won several major film awards with her role as a snarky and playful country girl who yearns for the big city in
Little Forest. Her standout role as the protagonist's rival in
JTBC's melodrama mystery
Misty paved the way for Jin to be cast in a leading role for the first time in
MBC's melodrama thriller
Come and Hug Me. In 2019, Jin starred in the SBS romantic comedy series
The Secret Life of My Secretary. Jin played the protagonist role in
KBS2's 2020 family weekend drama
Homemade Love Story. In 2022, Jin accepted two series offers, MBC's supernatural fantasy
From Now On, Showtime! and KBS2's time travel mystery
My Perfect Stranger. She acted as a journalist and daughter of assassinated presidential candidate in the 2024 period series
Uncle Samsik starring acclaimed film actor
Song Kang-ho. Jin was cast in MBC's action comedy
Undercover High School aired in early 2025. In April 2025, Jin signed a new management contract with Basecamp Company, the agency founded by veteran actors
Cha Tae-hyun and
Zo In-sung a month ago. She became that agency's first actress. ==Filmography==