Setha Sirachaya entered the entertainment industry at the age of 16, initially by carrying instruments for a band at the encouragement of his uncle, Surasit Sattayawong, a renowned actor from the post-World War II era.

Determined to improve, Setha honed his musical skills by studying and learning from senior musicians, eventually becoming a singer at various entertainment venues, including American military camps in provincial areas during the Vietnam War.

At first renaming themselves Joint Reaction, they would eventually become known as The Impossibles, inspired by an American cartoon of the same name that aired on television at the time.

This achievement significantly boosted the band's popularity and marked a turning point in Setha and his bandmates' careers.

One of his most notable films is "Cheun Rak" (1979), directed by Mom Chao Thipyachat Chatchai, where he starred opposite Aranya Namwong.

[7] Aranya later gave birth to his daughter, Eve Putthida Sirachaya, who is a singer and television producer.