Lee Si-On (Child Actor, Born 2013) Biography

Lee Si-On (Hangul: 이시온) is a South Korean child actor born on November 8, 2013. He has built a recognized portfolio appearing in various South Korean television drama series and feature films.

Portrait of South Korean child actor Lee Si-On — Lee Si-On

Acting Career

Lee began appearing in notable television series and theatrical films, frequently cast as the younger counterpart of main characters or in guest television roles.

Filmography

Hijack 1971 (2024) – Joon-Woo

Television Series

Filing for Love (tvN / 2026) – Ahn Seung-Woo's son (ep.7)
If Wishes Could Kill (Netflix / 2026) – Kim Geon-Woo (child)
Heo's Diner (Wavve-Netflix / 2025) – Lee Hyeok (child) (ep.2)
The Tale of Lady Ok (JTBC / 2024–2025) – Mun-Su
Dear Hyeri (ENA-Genie TV / 2024) – Moon Ji-On (child) (ep.6)
The Atypical Family (JTBC / 2024) – Bok Gwi-Ju (child)
The Impossible Heir (Disney+ / 2024) – Han Tae-O (child) (ep.1)
Strong Girl Nam-Soon (JTBC / 2023) – Ryu Si-O (child)
A Time Called You (Netflix / 2023) – crying boy (ep.8)