Banai was born in 1973 in Beersheba. The extended Banai family is notable as an outstanding family of Israeli artists; Eviatar is the younger brother of the actress Orna Banai and the singer and songwriter Meir Banai, although their father, Yitzhak Banai, was a judge.

Banai studied cinema in high school. He also studied piano for eight years. While serving in the Israel Defense Forces he directed and wrote the screenplay and music for a comedy film called Six that was shown on Israel's Channel 1.

(Wikipedia)