奥娜·热，Zee reportedly worked for the Wilhelmina Agency in the 1970s. She also did nude modeling and later decided to move into pornographic videos. She starred or appeared in over 300 adult movies since entering the industry in 1986. She was about 35 years old when she began, an age when many adult performers have already retired. She typically played what would later be called MILF or cougar" roles."I am an exhibitionist, so to take it to the nth degree was obviously where I was going. It took me a little longer to get there than some women but I knew I could be one of the best actresses in adult films, if not the best," she said in an interview. For 67 videos she served as director, writer and producer. In 1990, she formed her own production company, Ona Zee Pictures. The company initially focused on bondage titles, but later moved on to other genres as well, such as feature and girl-girl movies.During the 1990s she formed a pornographic performers' union, but it ultimately collapsed due to lack of political and legal support."