Irwin Allen
Zastupnevich ran his own boutique, "The House of Z", in Pasadena, California, with his sister Olga, and he designed clothes for actresses. In 1994, he was the special guest of honor at a convention in England. He presented several talks at the convention, covering his work with Irwin Allen. The same year he became honorary president of the Irwin Allen News Network, which is dedicated to all of Allen's works. In 1996 he was living in Palm Desert, California.