Cast of My Demon: Meet the Stars of the Hit K-Drama

The cast of My Demon brings together a stellar group of actors, each contributing to the captivating narrative of this supernatural K-drama. From the lead roles of Kim Yoo-Jung and Song Kang to the impactful supporting characters, the cast’s performances have played a key role in making My Demon a hit on Netflix.

With its blend of romance, corporate intrigue, and the supernatural, the ensemble cast perfectly brings this unique storyline to life, leaving a lasting impression on viewers.

Cast of My Demon Bio/Wiki

Actor	Date of Birth	Profession	Notable Roles	Awards & Achievements	Other Information
Kim Yoo-jung	September 22, 1999	Actress	Moonlight Drawn by Clouds, Backstreet Rookie	Best New Actress (Various Awards)	Known for her child actor roles, became a top actress at a young age, praised for her versatility and emotional depth in roles.
Song Kang	April 23, 1994	Actor	Love Alarm, Navillera, Nevertheless	Nominated for Best New Actor (Various Awards)	Known for his roles in romantic K-dramas, has become a rising star with a strong fan base due to his charming performances.
Lee Sang-yi	December 14, 1986	Actor	Once Again, Youth of May	Best Supporting Actor (Various Awards)	Initially trained as a musical actor, he gained popularity through his diverse roles in dramas, particularly in family-oriented stories.
Kim Hae-sook	April 16, 1955	Actress	The Taste of Money, A Model Family	Lifetime Achievement Awards	A veteran actress with over 40 years of experience, known for her roles in dramas and films, she has become a respected figure in the Korean entertainment industry.
Kim Tae-hoon	Unknown	Actor	Suits, The King: Eternal Monarch	N/A	Known for playing roles with strong, determined characters, often portraying high-level executives in dramas.
Lee Yoon-ji	January 15, 1984	Actress	Dr. Jin, Jang Ok-jung, Living by Love	Best Supporting Actress (Various Awards)	Has appeared in numerous TV dramas and films, earning recognition for her diverse character portrayals.
Jo Yeon-hee	December 25, 1977	Actress	The King’s Woman, The Woman Who Still Wants to Marry	Nominated for Best Actress	Known for her roles in period dramas, she has a long-standing career in Korean television and film.
Kang Seung-ho	June 11, 1994	Actor	My Country: The New Age, Familiar Wife	N/A	Rising star with strong performances in supporting roles in historical and contemporary dramas.
Jo Hye-joo	September 9, 1993	Actress	The Queen’s Flower, Little Women	N/A	Known for her roles in action and historical dramas, she brings a strong and independent presence to her characters.
Heo Jeong-do	January 17, 1990	Actor	Signal, The Outlaws	N/A	Has gained recognition in supporting roles, especially in crime and thriller genres.
Seo Jeong-yeon	December 16, 1981	Actress	Rookie Historian Goo Hae-ryung, Money Game	N/A	Known for her versatility, often playing supporting roles in historical and contemporary settings.
Park Jin-woo	September 29, 1985	Actor	Shady Mom-in-Law, Black Dog	N/A	Regularly appears in dramas with a focus on corporate dynamics and character-driven plots.
Lee Ji-won	September 23, 1990	Actress	My Lovely Sam-soon, The Time We Were Not in Love	N/A	Known for supporting roles in romantic comedies and family-oriented dramas.
Hong Jin-ki	May 5, 1992	Actor	Eve, Trolley	N/A	Rising actor, primarily appearing in dramas related to corporate and political settings.
Cha Chung-hwa	February 14, 1970	Actress	The Man Who Can’t Get Married, Oh My Venus	N/A	Known for her work in both comedic and dramatic roles, frequently playing quirky and mysterious characters.
Kim Young-jae	Unknown	Actor	City Hunter, Cheo Yong	N/A	A veteran actor who has appeared in numerous dramas, often in secondary roles that add depth to the plot.
Woo Hee-jin	October 6, 1992	Actress	The Last Empress, My Lovely Girl	N/A	Known for her emotional performances, often cast in roles that challenge her acting range.
Kim Seol-jin	February 7, 1990	Actor	The Beauty Inside, Chicago Typewriter	N/A	Has appeared in supporting roles in romantic dramas and thrillers, known for playing characters with emotional depth.

Main Cast and Their Roles

In My Demon, a gripping mix of fantasy, romance, and drama, the main characters bring depth and intensity to the story. Their performances make the K-drama a standout, with each actor delivering a memorable portrayal. Here’s a closer look at the lead cast and their significance in the series.

A. Kim Yoo-Jung as Do Do-hee

Kim Yoo-jung plays Do Do-hee, the CEO of Mirae F&B, a food conglomerate under the Mirae Group. Raised by her adoptive grandmother, Joo Cheon-sook, she is a powerful businesswoman known for her sharp intellect and fearless leadership. However, beneath her strong and independent exterior, she harbors deep emotional wounds from her past.

Adding an intriguing layer to her character, Do Do-hee also takes on the dual role of Wolsim, a courtesan from the Joseon era. This historical connection plays a key role in the drama’s unfolding mystery and Do Do-hee’s fate.

Kim Yoo-Jung, one of South Korea’s most beloved actresses, is no stranger to historical dramas. Having starred in hits like Moon Embracing the Sun and Lovers of the Red Sky, her ability to blend strength and vulnerability makes her the perfect fit for the role of Do Do-hee. Her exceptional acting skills bring emotional depth to the character, making her journey in My Demon all the more compelling.

B. Song Kang as Jeong Gu-won

Song Kang plays Jeong Gu-won, a 200-year-old demon who survives by making contracts with humans in exchange for granting their deepest desires. His existence is shrouded in mystery, and he has spent centuries maintaining a detached and cynical attitude toward humanity. However, everything changes when he crosses paths with Do Do-hee.

Throughout the drama, Gu-won undergoes a significant transformation. Initially viewing humans as mere tools for his survival, he gradually begins to understand emotions like love and sacrifice. His relationship with Do Do-hee challenges his immortal existence, making him question his nature and purpose.

Song Kang, known for his performances in Sweet Home, Nevertheless, and Navillera, brings his signature charm and depth to the role of Gu-won. His ability to portray both cold detachment and deep vulnerability makes him an ideal choice for this supernatural yet profoundly human character.

C. Lee Sang-yi as Joo Seok-hoon

Lee Sang-yi takes on the role of Joo Seok-hoon, the CEO of Mirae Investment and a key player in the business world of My Demon. He is not only a strategic thinker but also has a complicated dynamic with Do Do-hee, making him a crucial part of the drama’s unfolding conflicts.

Joo Seok-hoon’s character adds layers of tension to the story. He is driven by ambition and power, yet his interactions with Do Do-hee reveal a more personal and emotionally charged side. His motivations and relationships make him one of the most intriguing characters in the series.

Lee Sang-yi has been making waves in the industry with standout performances in dramas like Youth of May and Hometown Cha-Cha-Cha. His ability to deliver intense, layered performances makes Joo Seok-hoon a compelling character that keeps audiences engaged.

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D. Kim Hae-sook as Joo Cheon-sook

Kim Hae-sook portrays Joo Cheon-sook, the powerful chairwoman of Mirae Group and the woman who raised Do Do-hee. As the matriarch of the family, she wields immense influence in the corporate world, but her relationship with Do Do-hee is what truly defines her character.

She is a guiding force in Do Do-hee’s life, providing both wisdom and protection. However, the drama reveals complexities in their relationship, as secrets from the past begin to surface. Her role is central to the emotional depth of My Demon, showcasing themes of love, sacrifice, and power struggles.

A legendary actress in the Korean entertainment industry, Kim Hae-sook has built a reputation for her unforgettable performances in Hospital Playlist, Mother, and The Thieves. Her portrayal of Joo Cheon-sook adds an undeniable gravitas to the drama, making her character one of the most compelling figures in My Demon.

Supporting Cast & Their Impact

While the main characters drive the core narrative of My Demon, the supporting cast plays a crucial role in adding depth, intrigue, and emotional layers to the story. From corporate power struggles to mysterious past connections, these characters shape the drama’s intricate world.

A. Mirae Group Members

The Mirae Group is a powerful conglomerate at the center of My Demon, where high-stakes business dealings and internal conflicts create tension throughout the series.

• Kim Tae-hoon as Noh Seok-min
• Noh Seok-min is the CEO of Mirae Electronics, known for his ruthless ambition and willingness to do whatever it takes to climb the corporate ladder. His power-driven nature puts him at odds with Do Do-hee, leading to conflicts that shape key moments in the story.
• Lee Yoon-ji as Noh Soo-ah
• As the CEO of Mirae Apparel, Noh Soo-ah is deeply involved in corporate politics, using her influence to manipulate situations to her advantage. She plays a strategic role in the business dynamics, often aligning herself with the strongest contenders in the company.
• Jo Yeon-hee as Kim Se-ra
• Kim Se-ra is the Managing Director of Mirae Electronics and the wife of Noh Seok-min. While she appears to be a supporting figure, her calculating nature and hidden ambitions make her a character to watch.
• Kang Seung-ho as Noh Do-gyeong
• The heir to Mirae Electronics, Noh Do-gyeong struggles with the immense expectations placed upon him. His internal conflict between fulfilling his family’s legacy and forging his path makes him a compelling side character.

These characters contribute to the high-stakes world of My Demon, where power plays, betrayals, and family rivalries add complexity to Do Do-hee’s journey.

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B. Sunwol Foundation Members

The Sunwol Foundation holds deep connections to the supernatural and historical elements of the drama, particularly in relation to Jeong Gu-won’s past.

• Jo Hye-joo as Jin Ga-young
• A skilled traditional martial arts dancer, Jin Ga-young is a fierce and strong-willed character. She brings an element of mystique to the series, with her knowledge of historical secrets tied to Gu-won’s existence.
• Heo Jeong-do as Park Bok-gyu
• As the Director of Sunwol Foundation, Park Bok-gyu is a key figure who holds vital information about Gu-won’s past. His mysterious aura and deep knowledge of supernatural events make him a crucial piece in the puzzle of My Demon.

These characters provide a bridge between the modern-day conflicts and the historical and supernatural themes of the drama.

C. Mirae F&B Staff

At Mirae F&B, Do Do-hee’s leadership is supported by a dedicated team. Their relationships, office politics, and personal struggles add realism and depth to the series.

• Seo Jeong-yeon as Secretary Shin Da-Jeong
• As Do Do-hee’s loyal secretary, Shin Da-jeong is fiercely protective of her boss and plays a crucial role in handling the chaos around her. Her deep sense of duty makes her a standout character in the corporate setting.
• Park Jin-woo as Han Min-soo
• The PR team leader at Mirae F&B, Han Min-soo deals with the challenges of maintaining the company’s public image. His character brings both comic relief and moments of tension as he navigates media crises.
• Lee Ji-won as Choi Jung-mi
• An assistant manager in the PR team, Choi Jung-mi is ambitious and dedicated to her job. She often finds herself caught in the drama of office politics.
• Hong Jin-ki as Lee Han-Seong
• A new employee at Mirae F&B, Lee Han-seong represents the fresh perspective of a young worker entering the high-pressure world of corporate business.

Special & Extended Cast

While the main and supporting cast drives the narrative, My Demon also features special and extended characters who add intrigue and depth to the story. These characters may have limited screen time, but their impact is significant in shaping the plot and emotional arcs.

A. Cha Chung-Hwa as the Homeless Woman (God)

One of the most mysterious characters in My Demon, Cha Chung-hwa plays a homeless woman who is later revealed to be God.

• Initially appearing as an eccentric and unpredictable figure, she is far more than what she seems.
• Her cryptic advice and sudden appearances guide Jeong Gu-won and Do Do-hee in unexpected ways.
• As the story unfolds, her true identity and purpose become crucial to the supernatural elements of the drama.
• Cha Chung-hwa’s ability to blend humor with deep wisdom makes this role one of the most memorable performances in the series.

Her presence in the drama adds a spiritual and philosophical layer, making viewers question fate, destiny, and redemption.

B. Kim Young-Jae & Woo Hee-jin as Do Do-hee’s Parents

Does Do-hee’s tragic backstory is deeply influenced by her late parents, played by Kim Young-Jae and Woo Hee-jin?

• Kim Young-Jae as Do Won–jun–Do Do-hee’s father, a businessman whose ideals and legacy influence her journey.
• Woo Hee-jin as Yoon Bo-mi – Do Do-hee’s mother, a loving figure whose tragic fate shapes Do-hee’s emotional struggles.

Their sudden loss in the drama leaves a lasting emotional wound on Do Do-hee, making her independent yet emotionally guarded. Their story is often referenced in flashbacks, helping viewers understand Do-hee’s motivations.

C. Kim Seol-jin as Gi Gwang-Cheol

Gi Gwang-cheol is a mysterious figure with a deep connection to the leads.

• His past interactions with Jeong Gu-won hint at the demon’s long history with humanity.
• His role evolves throughout the series, offering key information that helps unravel the secrets of Gu-won’s existence.

Kim Seol-jin’s portrayal adds mystique and depth, making him a standout extended cast member.

D. Guest Appearances & Notable Cameos

My Demon also features several guest stars who make brief but memorable appearances, adding to the drama’s layered storytelling. Some of these cameos might include:

• Famous K-drama actors making surprise appearances.
• Actors playing past versions of characters in flashbacks.
• Cameos that provide comic relief or unexpected plot twists.

Behind the Scenes & Cast Chemistry

The success of My Demon is not only due to its compelling storyline but also the strong chemistry between the cast members.

How the Actors Prepared for Their Roles

• Kim Yoo-Jung underwent extensive training to embody Do Do-hee’s powerful yet vulnerable personality, including business leadership coaching to portray a convincing CEO.
• Song Kang focused on expressing the duality of Jeong Gu-won, balancing his cold demon persona with his unexpected emotional depth.
• The supporting cast worked closely with the production team to ensure their characters contributed meaningfully to the story’s corporate and supernatural elements.

On-Screen & Off-Screen Chemistry

• The natural chemistry between Kim Yoo-Jung and Song Kang made their on-screen romance believable and engaging.
• Behind-the-scenes clips show their playful interactions, proving their strong bond off-camera.
• The entire cast formed a close-knit team, evident in their group interviews and social media posts.

Fun Facts About Filming

• Many intense scenes had to be reshot due to uncontrollable laughter on set.
• Song Kang and Kim Yoo-jung often improvised dialogues, making their scenes more natural.
• Some locations were real historical sites, adding authenticity to the drama’s flashback sequences.

Social Media of Cast of My Demon

Actor	Social Media Accounts	Platform Details
Kim Yoo-jung	Instagram: @you_r_love	Active on Instagram, sharing personal moments, endorsements, and professional updates.
Song Kang	Instagram: @songkang_b	Known for posting lifestyle pictures, professional updates, and promotional content.
Lee Sang-yi	Instagram: @sang_yee	Frequently posts updates on his roles, personal photos, and work-related content.
Kim Hae-sook	Instagram: @haesook_kim_official	Shares professional milestones, career-related content, and personal moments.
Kim Tae-hoon	Not publicly available	No known social media presence as of now.
Lee Yoon-ji	Instagram: @yoonji_lee_	Posts a mix of professional and personal photos.
Jo Yeon-hee	Not publicly available	No known social media presence as of now.
Kang Seung-ho	Instagram: @kangseungho_	Frequently shares content related to his acting projects and personal life.
Jo Hye-joo	Instagram: @jo_hyejoo	Shares updates on her acting roles and personal life moments.
Heo Jeong-do	Instagram: @jeongdo_hee	Focuses on posts related to his acting career and promotional content.
Seo Jeong-yeon	Instagram: @jeongyeon_80	Shares photos related to her career and personal updates.
Park Jin-woo	Instagram: @jinwoo_park	Regularly posts about his acting projects and personal life.
Lee Ji-won	Instagram: @jiw_lee	Active on Instagram, sharing professional updates and personal moments.
Hong Jin-ki	Instagram: @hongjin_ki	Shares behind-the-scenes photos from his dramas and personal moments.
Cha Chung-hwa	Instagram: @chachunghwa	Posts related to her acting roles and behind-the-scenes content.
Kim Young-jae	Not publicly available	No known social media presence as of now.
Woo Hee-jin	Instagram: @woohee_jin	Shares a mix of career-related posts and personal updates.
Kim Seol-jin	Not publicly available	No known social media presence as of now.

Frequently Asked Questions about the Cast of My Demon

Who plays Do Do-hee in My Demon?

Does Do-hee is played by Kim Yoo-Jung, a talented actress known for her roles in both historical and modern dramas? In My Demon, she portrays a strong and independent CEO with a complex personality.

Who plays Jeong Gu-won in My Demon?

Song Kang plays Jeong Gu-won, a 200-year-old demon who forms contracts with humans. His character undergoes a significant transformation throughout the series, adding mystery and intrigue to the plot.

Is there a love story between Do Do-hee and Jeong Gu-won?

Yes, the drama features a romantic storyline between Do Do-hee and Jeong Gu-won, with their complex relationship evolving throughout the show. The chemistry between Kim Yoo-Jung and Song Kang is one of the highlights of the series.

Who plays Joo Seok-hoon in My Demon?

Lee Sang-yi portrays Joo Seok-hoon, the CEO of Mirae Investment. His character has a complicated relationship with Do Do-hee, contributing to the tension in the story.

Who is Kim Hae-sook’s character in My Demon?

Kim Hae-sook plays Joo Cheon-sook, the powerful chairwoman of Mirae Group and Do Do-hee’s mother. Her role is pivotal in shaping the family dynamics and the corporate drama of the series.

Conclusion

The cast of My Demon has been integral to the success of this K-drama, with each actor delivering remarkable performances that have resonated with audiences worldwide.

Kim Yoo-jung and Song Kang shine in their respective roles, bringing depth and complexity to their characters, while the supporting cast, including Lee Sang-yi and Kim Hae-sook, add intrigue and emotion to the story. The chemistry between the leads, coupled with strong character development, keeps viewers hooked episode after episode.

The supernatural elements, combined with corporate drama, are brought to life by a talented ensemble that elevates the overall experience. Ultimately, My Demon is a testament to the power of great storytelling and a stellar cast.