Kim Yoo-jung plays Do Do-hee, Song Kang plays Jeong Gu-won (the demon) and Lee Sang-yi plays Joo Seok-hoon in the Korean fantasy romance ‘My Demon‘.
Main cast
- Do Do-heeKim Yoo-jung1Main
- Jeong Gu-wonSong Kang1Main
- Joo Seok-hoonLee Sang-yi1Main
Supporting cast
- Do Gyeong-sukLee Yoon-ji1Supp
- Jin Dal-jaJo Hye-joo1Supp
- No Do-kyungKim Tae-hoon1Supp
- Kim Se-raCha Chung-hwa1Supp
- Park Soo-jinKim Hye-ji1Supp
- Joo Cheon-sookSeo Jeong-yeon1Supp
- Joo Young-wolJung Jin-young1Supp
Guest & voice
- Noh Seong-miKim Hae-suk1Guest
- Jin SinSeo Ui-su1Guest
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About this cast
My Demon is a 2023–2024 South Korean television series that blends fantasy, romance and comedy. The story revolves around a cold-hearted heiress named Do Do-hee and a powerful demon named Jeong Gu-won who loses his powers after a contract with her, leading to an unlikely and perilous romance.
FAQs
Who plays the demon Jeong Gu-won in My Demon?
The demon Jeong Gu-won is played by actor Song Kang.
How many episodes are in My Demon?
My Demon has 16 episodes.
Was My Demon produced by a UK network?
No, My Demon is a South Korean drama produced by SBS and available on Netflix internationally.
Who plays the female lead Do Do-hee in My Demon?
The female lead Do Do-hee is played by actress Kim Yoo-jung.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026