Study Group Cast, a South Korean drama featuring Hwang Min-hyun as the determined Yoon Ga-min, Han Ji-eun as the supportive teacher Lee Han-kyung, and a diverse ensemble of students working together to defy their troubled school’s reputation. Explore the unique characters and performances that bring this inspiring story to life.”
Table of Contents
Introduction

Study Group is a captivating South Korean drama that delves into the lives of a group of high school students striving for academic success and personal growth. Set in the notorious Yusung Technical High School, known for its troubled students, the series follows Yoon Ga-min (played by Hwang Min-hyun), a tough yet determined first-year student who dreams of overcoming the school’s negative reputation to attend university. To achieve his goal, Ga-min forms a study group with his classmates, each of whom brings unique challenges and strengths to the table. Alongside them is Lee Han-kyung (Han Ji-eun), a temporary teacher who believes in the transformative power of education and becomes a key supporter of their journey.
Study Group Cast
Hwang Min-hyun as Yoon Ga-min
- Role: Ga-min is a first-year student at Yusung Technical High School, which has a reputation for producing troubled students. Despite being tough and skilled in physical confrontations, Ga-min dreams of entering university and breaking free from the school’s reputation. He is determined to improve his grades, even if it means forming a study group with classmates who are also striving to better themselves academically.
- Background: Hwang Min-hyun, known for his role in the popular K-pop group NU’EST, is expanding his acting career. He brings a determined, charismatic presence to Ga-min’s character.
Han Ji-eun as Lee Han-kyung
- Role: Han-kyung is a temporary teacher at Yusung Technical High School. Though initially inexperienced, she becomes an important mentor and guide to the students. Han-kyung believes in the power of education to change lives and supports the study group wholeheartedly.
- Background: Han Ji-eun is known for her roles in dramas like Cheat on Me If You Can and I’m on the Next Level. Her character adds a compassionate, nurturing dynamic to the series, balancing the tough atmosphere of the high school.
Cha Woo-min as Pi Han-wool
- Role: Han-wool is a model second-year student with outstanding academic performance. Despite his seemingly perfect exterior, he also struggles with personal challenges. Han-wool is one of the key members of the study group, offering a more intellectual approach to studying and motivating his peers.
- Background: Cha Woo-min is gaining attention for his versatility in both acting and music, adding depth to his role as the academically driven student in the series.
Lee Jong-hyun as Kim Se-hyun
- Role: Se-hyun is a classmate of Ga-min who becomes involved in the study group. While not as academically inclined as Han-wool, he brings different strengths to the group, and his involvement with Ga-min highlights his desire to grow and break out of the school’s negative reputation.
- Background: Lee Jong-hyun, known for his previous work in dramas like The Liar and His Lover, plays a more grounded role here. His character provides a balance to the more intense personalities in the group.
Shin Su-hyun as Lee Ji-woo
- Role: Ji-woo is the twin sister of Han-wool and a first-year student. She joins the study group, bringing her own strengths to the team while also dealing with the pressure of being compared to her high-achieving brother. Ji-woo’s character offers a mix of vulnerability and strength, making her an interesting addition to the dynamic.
- Background: Shin Su-hyun has made a name for herself in both television and film, and in this role, she showcases her ability to portray complex emotional growth.
Yoon Sang-jeong as Choi Hee-won
- Role: Hee-won is Ji-woo’s best friend and another member of the study group. She adds a bit of light-heartedness to the group but also faces her own set of challenges. Her role in the group provides an emotional anchor and brings moments of levity.
- Background: Yoon Sang-jeong’s character is poised to bring a supportive energy to the group dynamic, and her career has been growing through her involvement in both drama and variety shows.
Gong Do-yu as Lee Jun
- Role: Jun is a self-proclaimed member of the study group, though he initially appears to be more interested in improving his fighting skills than his academic performance. His journey in the series is about finding balance and realizing the importance of teamwork and education, even in a school filled with troubled students.
- Background: Gong Do-yu plays the character with a mix of humor and sincerity, drawing attention for his comedic timing and the depth he adds to his role.
Support Cast
1. Kim Kyu-sun as Park Jeong-mi
- Role: A fellow student who plays a smaller yet significant role in the school dynamics. Park Jeong-mi provides insights into the more everyday struggles of the students at Yusung Technical High School, contributing to the show’s exploration of different personalities within the school.
2. Jung Yoo-jin as Kim Young-hee
- Role: Another student at Yusung Technical High School who has a distinct relationship with the main characters, offering support and moments of contrast that highlight the differing approaches to education within the student body.
3. Park Seong-hoon as Choi Min-hwan
- Role: A student known for his involvement in school activities, Choi Min-hwan is a key figure in helping to showcase the evolving school culture and dynamics, especially as the study group begins to make a name for itself. His interactions with the main cast add layers to the high school environment.
4. Lee Seung-ho as Teacher Baek
- Role: A fellow teacher at Yusung Technical High School who contrasts with Han-kyung’s more compassionate approach to teaching. Teacher Baek represents the more traditional and rigid educational outlook within the school, offering both conflict and insight into the school’s challenges.
5. Yoo Jin-ki as Principal Jang
- Role: The strict but caring principal of Yusung Technical High School, Principal Jang oversees the school’s efforts to improve its reputation. His character adds a layer of authority and concern for the future of his students, often guiding their decisions in key moments.
6. Seo Young-hee as Student Council President
- Role: The confident and ambitious student leader who serves as both a rival and ally to the main characters. Her interactions with Ga-min and the study group bring in an element of school politics and leadership challenges.
7. Kim Ji-soo as Student Friend
- Role: A close friend of one of the main characters, their role adds more emotional depth to the relationships between the students. Their personal journey helps flesh out the broader emotional stakes of the drama.
Conclusion
Study Group is a compelling and heartwarming drama that explores the themes of perseverance, friendship, and personal growth within the challenging environment of Yusung Technical High School. Through its dynamic cast, including both the main and supporting characters, the series portrays the journey of a group of diverse students who unite to improve their academic skills and overcome the stigma surrounding their school.
With strong performances, especially from Hwang Min-hyun and Han Ji-eun, the drama brings to life a story of determination and the power of education to transform lives. The support cast adds depth and nuance to the narrative, enriching the characters’ personal stories and relationships. Study Group not only offers an engaging and inspiring watch but also serves as a reminder that with the right guidance, teamwork, and hard work, anyone can break free from their circumstances and pursue their dreams.
Pachinko Cast & Their Role (2022)
(FAQs)
Who plays Yoon Ga-min in Study Group?
Answer: Yoon Ga-min, the determined first-year student at Yusung Technical High School, is played by Hwang Min-hyun, a member of the K-pop group NU’EST. Hwang brings depth and charisma to the character, portraying Ga-min’s journey from troubled student to determined academic hopeful.
Who is Han Ji-eun’s character in Study Group?
Answer: Han Ji-eun plays Lee Han-kyung, a temporary teacher at Yusung Technical High School. Han-kyung becomes a mentor and guiding force for the students in the study group, offering both academic and emotional support.
What other dramas has Hwang Min-hyun been in?
Answer: Before Study Group, Hwang Min-hyun was known for his roles in Alchemy of Souls and his involvement in NU’EST. He has also appeared in various variety shows, building a strong fanbase both as a singer and actor.
What role does Cha Woo-min play?
Answer: Cha Woo-min portrays Pi Han-wool, a model second-year student who excels academically. Han-wool is a key member of the study group and adds intellectual strength to the team, despite dealing with personal challenges.
Who plays Lee Ji-woo in Study Group?
Answer: Shin Su-hyun plays Lee Ji-woo, Han-wool’s twin sister and a first-year student. Ji-woo joins the study group, balancing her academic journey with the pressure of living up to her brother’s achievements.
Has Han Ji-eun worked in other dramas?
Answer: Yes, Han Ji-eun has appeared in several popular dramas, including Cheat on Me If You Can and I’m on the Next Level. She is well-known for her versatile acting in both comedic and dramatic roles.
Who plays the principal in Study Group?
Answer: The character of Principal Jang, the strict but caring school principal, is played by Yoo Jin-ki. He is an authority figure within the school, adding a layer of conflict and guidance to the narrative.
Are there any notable supporting actors in Study Group?
Answer: Yes, some notable supporting actors include Kim Ji-soo, who plays a close friend of one of the main characters, and Seo Young-hee, who portrays the ambitious Student Council President. These supporting roles add depth and nuance to the storyline.
What other roles has Cha Woo-min played?
Answer: Cha Woo-min has appeared in other dramas, such as The Liar and His Lover, and has made a name for himself both as an actor and a singer. His role as Pi Han-wool in Study Group is one of his standout performances to date.
Is the cast of Study Group mostly made up of newcomers?
Answer: While there are some newcomers to the acting scene, such as Hwang Min-hyun and Cha Woo-min, the cast also features experienced actors like Han Ji-eun and Lee Jong-hyun, who bring a mix of seasoned acting talent and fresh energy to the show.