Mitai Leo Saussay is a Thai-French actor, host and singer managed by GMMTV. Leo graduated with a bachelor's degree from the faculty of humanities at Ramkhamhaeng University (French program).

Leo entered the entertainment industry as a singer in the boy band B.O.Y formed by James (Ruangsak Loychusak), Tengnueng (Kanist Piyapaphakornkoon), James (Kitkasem McFadden) and Mouse (Natcha Janthapan).

Since 2009, Leo has been in a relationship with singer-actor Chacha Arita Ramnarong.