Jaa Jarunun Phantachat is an award-winning actor, playwright, director and producer and co-artistic director of B-Floor Theatre, a physical theatre group based in Bangkok. A graduate of Chiang Mai University's Faculty of Mass Communication, her physical theatre training includes modern dance, Laban Effort Qualities, Butoh and Viewpoints. She has performed in numerous B-Floor productions and toured internationally.

In 2014, Jaa received the prestigious Silpathorn Award for outstanding merit in theatre from Thailand's Ministry of Contemporary Art and Culture and was an Asian Cultural Council Fellow. In 2015, she received the award for Best Direction from the Thai Section of the International Association of Theatre Critics (IATC – Thailand) for “Test of Endurance.” The shows she produced in 2016 (“Fundamental”) and 2018 (“Something Missing”) won Best Ensemble Performance, Best Art Direction, and Best Movement Based Performance from IATC – Thailand.

In 2016 she received the award for Best Actress in the film "Ferris Wheel" from the Short Shorts Film Festival & Asia international competition and Thai Short Film & Video Festival.

Beyond her work with B-Floor, Jarunun is a freelance writer, a voice-over director for the online game “Blizzard's Hearthstone” Thailand, and is a co-founder of Collective Thai Scripts, a group that curates the translation and publication of contemporary Thai scripts.