Jeon Ji Hyeon was born in Seoul, South Korea. She Studied at the Dongguk University in the Department of Theater and Film. At the age of 16, she was introduced by a neighbor into modeling. And then her career as a fashion model has began.
Name: Jeon Ji Hyeon
Birthday: October 30, 1981
Birth Place: Seoul, South Korea
Occupation: Actress, Model
Blood Type: B
Star Sign: Scorpio
In 2001, her biggest breakthrough was in My Sassy Girl, a romantic comedy which bought her international recognition and won Best Actress award at the Daejong Film Festival in 2002.
Jeon made her English-language film debut when she starred as Saya in Blood: The Last Vampire in 2009, which was filmed in China and Argentina in March 2007. It was during filming and before the March 2009 release that she adopted the Westernised name Gianna Jun. The film was Jun's first official action film and was a "drastic" change in her image from previous films.