Soul Mechanic Cast features a talented ensemble led by Shin Ha-kyun as Dr. Lee Shi-joon, an eccentric psychiatrist dedicated to helping his patients overcome mental health struggles. Jang Ki-yong portrays Han Woo-joo, a patient with a complex past, while Im Soo-jung plays a fellow psychiatrist navigating her own challenges.
Table of Contents
Introduction

Soul Mechanic is a heartfelt South Korean drama that delves into the complexities of mental health, therapy, and personal healing. The series follows Dr. Lee Shi-joon, portrayed by Shin Ha-kyun, an eccentric and compassionate psychiatrist who goes to great lengths to help his patients overcome their emotional struggles. His unconventional methods and deep empathy bring hope to those in need of healing. Alongside him is Han Woo-joo, played by Jang Ki-yong, a troubled patient whose journey to recovery forms the emotional core of the series. Im Soo-jung portrays a fellow psychiatrist, whose own personal and professional challenges add depth to the narrative. With a powerful cast and an emotionally charged storyline, Soul Mechanic explores the importance of mental health and the transformative power of human connection.
Soul Mechanic Cast
Shin Ha-kyun as Dr. Lee Shi-joon
Shin Ha-kyun plays the central character, Dr. Lee Shi-joon, a compassionate yet quirky psychiatrist. Dr. Lee is known for his unconventional therapeutic methods and his deep empathy for his patients, often going beyond the call of duty to help them navigate their emotional struggles. Despite his eccentricities, he is a highly skilled psychiatrist who uses humor, warmth, and creative approaches to bring comfort to his patients. Shin Ha-kyun’s portrayal of Dr. Lee showcases his ability to bring both depth and charm to the character, creating a memorable and lovable figure in the world of therapy. Shin Ha-kyun is well-known for his roles in Brain (2011), The Day After (2017), and The Classic (2003).
Jang Ki-yong as Han Woo-joo
Jang Ki-yong plays Han Woo-joo, a troubled young man and one of Dr. Lee Shi-joon’s patients. Woo-joo’s character grapples with his emotional scars and struggles to overcome a painful past. As he begins to form a bond with Dr. Lee, he starts his journey toward healing and self-acceptance. Jang Ki-yong brings a nuanced performance to the role, capturing Woo-joo’s inner turmoil, vulnerability, and growth. Known for his roles in Come and Hug Me (2018) and Search: WWW (2019), Jang Ki-yong showcases his range as an actor in this emotionally complex role.
Im Soo-jung as Jang Joo-yeon
Im Soo-jung portrays Jang Joo-yeon, a fellow psychiatrist who works alongside Dr. Lee Shi-joon. Joo-yeon is a competent and professional doctor, but she also faces her own personal struggles, particularly in balancing her career and emotional well-being. Her character’s journey is closely intertwined with Dr. Lee’s, as they navigate both their professional lives and complex personal relationships. Im Soo-jung’s portrayal of Joo-yeon adds depth and sensitivity to the show, offering a balanced contrast to Dr. Lee’s eccentricity. Im Soo-jung is a celebrated actress, known for her roles in I’m Sorry, I Love You (2004), Another Way (2010), and The Girl on a Bulldozer (2021).
Ahn Nae-sang as Kim Kyung-hee
Ahn Nae-sang plays Kim Kyung-hee, a senior psychiatrist and mentor to Dr. Lee Shi-joon. His character provides guidance and support, offering wisdom to Dr. Lee as he navigates his own therapeutic practice. Ahn Nae-sang brings a calm, authoritative presence to the role, further enriching the hospital setting of the show. Known for his strong supporting roles in dramas like My Golden Life (2017) and The Lies Within (2019), Ahn Nae-sang adds a layer of maturity and stability to the series.
Supporting Cast
Kim Kwang-kyu as Bae Jung-woo
Kim Kwang-kyu plays Bae Jung-woo, one of Dr. Lee Shi-joon’s patients. Jung-woo’s character represents a person dealing with complex emotional challenges and looking for ways to regain control over his life. Kim Kwang-kyu brings a grounded, sympathetic presence to the show, balancing the more intense emotional moments with warmth and vulnerability. He is a well-known actor, recognized for his roles in The Lawyers (2019) and Misty (2018).
Cha Soon-bae as Oh Jung-sook
Cha Soon-bae portrays Oh Jung-sook, another patient who seeks help from Dr. Lee. Jung-sook’s storyline explores themes of grief, loss, and the search for inner peace. Cha Soon-bae’s performance is full of nuance, providing a deeply emotional perspective on the difficulties of overcoming personal trauma. Cha Soon-bae is known for her supporting roles in My Lovely Sam Soon (2005) and Rude Miss Young-ae (2007).
Jung Joo-yeon as Jung Yoo-hee
Jung Joo-yeon plays Jung Yoo-hee, a key character who interacts with the main cast throughout the series. As a secondary character, Yoo-hee’s role further explores the themes of mental health and the impact of relationships on healing. Jung Joo-yeon’s portrayal adds emotional layers to the overall narrative, balancing out some of the series’ more dramatic moments. She is known for her roles in The Light in Your Eyes (2019) and Woman with a Suitcase (2016).
Park So-jin as Yoo Na-mi
Park So-jin plays Yoo Na-mi, a fellow psychiatrist who works with Dr. Lee Shi-joon. While Na-mi’s character is often more pragmatic and grounded compared to Dr. Lee’s eccentricities, she adds an important layer of professionalism to the series. Park So-jin’s performance helps to highlight the complexities and challenges of working in the mental health field, giving the show a more well-rounded portrayal of the profession. Park So-jin has also appeared in dramas like Secret Garden (2010) and That Woman (2020).
Lee Ki-kwang as Baek Seung-jo
Lee Ki-kwang plays Baek Seung-jo, a character who adds a layer of complexity to the storyline, as he interacts with the main characters in ways that impact their emotional and professional development. Lee Ki-kwang’s portrayal brings a unique element to the show, providing support to the leads while also navigating his own challenges. He is well-known for his work in K-pop as a member of the group Highlight but has also been involved in acting in projects like Meow, the Secret Boy (2020) and The Time (2018).
Jang Hyun-sung as Kim Tae-woo
Jang Hyun-sung plays Kim Tae-woo, a character who contributes to the overall emotional depth of the drama. His role, while not as central as the main cast, brings important insights into the personal struggles of those around Dr. Lee. Known for his extensive work in film and television, including The K2 (2016) and Descendants of the Sun (2016), Jang Hyun-sung’s strong supporting performance enhances the dramatic intensity of the series.
Conclusion
In conclusion, Soul Mechanic is a deeply engaging and thought-provoking drama that highlights the complexities of mental health, therapy, and the healing process. With an exceptional main cast, led by Shin Ha-kyun, Jang Ki-yong, and Im Soo-jung, the series captivates viewers with its emotional depth and authentic exploration of the human psyche. The supporting cast adds crucial layers to the narrative, providing diverse perspectives on emotional struggles and personal growth. Together, the characters and their compelling story arcs create a powerful reflection on the importance of mental well-being and the transformative impact of therapy. Soul Mechanic ultimately offers both heartwarming and impactful moments, making it a standout series for those seeking a drama that goes beyond typical romantic tropes and tackles real-life issues with sensitivity and empathy.
Find Me In Your Memory Cast & Their Role (2020) Korean Drama
(FAQs)
Who plays Dr. Lee Shi-joon in Soul Mechanic?
Shin Ha-kyun plays Dr. Lee Shi-joon, the eccentric and compassionate psychiatrist at the heart of the series. His character uses unconventional methods to help his patients heal from their emotional struggles.
What other roles is Shin Ha-kyun known for?
Shin Ha-kyun is known for his roles in Brain (2011), The Day After (2017), and The Classic (2003). He is well-respected for his ability to portray complex characters in both dramas and films.
Who plays Han Woo-joo, the troubled patient?
Jang Ki-yong plays Han Woo-joo, a troubled patient who struggles with his past trauma. His character develops a deep connection with Dr. Lee as they work together on his path to healing.
What other dramas has Jang Ki-yong starred in?
Jang Ki-yong is also known for his roles in Come and Hug Me (2018), Search: WWW (2019), and My Roommate Is a Gumiho (2021). He has gained widespread recognition for his versatility in both romantic and dramatic roles.
Who plays Jang Joo-yeon, the fellow psychiatrist?
Im Soo-jung plays Jang Joo-yeon, a professional psychiatrist who works alongside Dr. Lee Shi-joon. She adds an important dimension to the story as she grapples with her own emotional and professional challenges.
What other roles is Im Soo-jung known for?
Im Soo-jung is a well-known actress with a career spanning several notable projects, including I’m Sorry, I Love You (2004), Another Way (2010), and The Girl on a Bulldozer (2021). She is praised for her ability to portray complex emotional characters.
Who plays Bae Jung-woo in Soul Mechanic?
Kim Kwang-kyu portrays Bae Jung-woo, one of Dr. Lee’s patients, who faces his own emotional struggles as he seeks therapy. His character adds to the series’ exploration of the diverse experiences of people seeking mental health support.
Has Kim Kwang-kyu appeared in other K-dramas?
Yes, Kim Kwang-kyu has appeared in dramas like The Lawyers (2019), Misty (2018), and My Lovely Sam Soon (2005), showcasing his talent in both comedic and dramatic roles.
Who plays Yoo Na-mi, the fellow psychiatrist in the series?
Park So-jin plays Yoo Na-mi, a fellow psychiatrist who works with Dr. Lee Shi-joon. She provides a more grounded and professional perspective on mental health, offering a contrast to Dr. Lee’s unorthodox methods.
What role does Ahn Nae-sang play in the series?
Ahn Nae-sang portrays Kim Kyung-hee, a senior psychiatrist and mentor to Dr. Lee. His character provides guidance and wisdom, offering support to Dr. Lee as he navigates the complexities of his work and personal life.
How does the supporting cast contribute to the show?
The supporting cast, including characters like Bae Jung-woo (Kim Kwang-kyu) and Yoo Na-mi (Park So-jin), plays a crucial role in highlighting the different aspects of mental health treatment. They provide emotional depth and showcase various perspectives on healing, making the show more well-rounded and relatable.
Is the chemistry between the main cast important for the show?
Yes, the chemistry between the main cast members, particularly between Shin Ha-kyun and Jang Ki-yong, is essential to the success of the show. Their dynamic as psychiatrist and patient adds emotional weight to the story, making it more engaging and impactful for viewers.