Lee Si-a (; born July 10, 1990), birth name Lee Ji-a, is a South Korean actress and singer. She made her entertainment debut in 2011 as a member of the K-pop girl group CHI CHI. When Chi Chi disbanded in 2013, Lee turned to acting, and has appeared in television series such as More Than a Maid (2015), Signal (2016), and The Unusual Family (2016).
Filmography Film Year Title Role 2017 Lucid Dream Mi-yeon 2018 The Negotiation Yoo Yeon-joo 2019 Faceless Boss Jeong Min-jeong
Television series Year Title Role Notes 2013 Hur Jun, The Original Story Lady Yu (Gwanghae's wife) Guest appearance 2014 My Lovely Girl Yoon So-eun 2015 More Than a Maid Heo Yoon-ok Cheo Yong 2 Han Ji-soo Special appearance, Ep. 6 Remember Kim Han-na Special appearance, Ep. 5–6 2016 Signal Kim Won-kyung (ep.3-4) Doppelganger Yeon-joo Web drama The Unusual Family Kang Dan-yi 2017 Tunnel Shin Yeon-sook Suspicious Partner Lee Na-eun Special appearance, Ep. 6 2018 Mr. Sunshine Choi Yoo-jin's mother Special appearance Let Me Introduce Her Ji Eun-han 2020 365: Repeat the Year Seo Yeon-soo 2021 Midnight Thriller – "Supermodel" Lee Ji-eun 2023 Korea–Khitan War Queen Wonjeong 2024 Flex X Cop Kim Seon-young Cameo (episode 4, 8–9) 2025 The Queen Who Crowns Yeong-sil A Graceful Liar Cha Jung-won / Joo Young-chae/Cha Soo-ah
Television show Year Title Role Notes 2013 Korean Art Idol Competition – Everyone Gather! Contestant Episode 1–3
Music video appearances Year Song title Artist 2013 "Just Another Girl" Kim Jae-joong
References