Lee Si-yeon (이시연) is a South Korean actress. Prior to her sex reassignment surgery in 2007, she was sometimes credited under her male birth name of Lee Dae-hak (이대학).

Filmography

• 2010Nan yeojaga dwaesseo
• 2008The Devil's Game
• 2007Sex Is Zero 2 — Dae-hak
• 2002Sex Is Zero — Lee Dae-hak
• 2001My Boss, My Hero — Heo Ri-su

Appearances as themselves (1)

• X-Man — Self