In 1978, Vossoughi partnered with Ali Hatami in another film, Sooteh-Delan. He was one of the first Iranians to appear in American and European co-productions, such as Caravans (1978), co-starring with Anthony Quinn, Jennifer O'Neill and Michael Sarrazin. He also appeared in The Invincible Six (1970) with Curd Jürgens, and Sphinx (1981) with Frank Langella and Lesley-Anne Down.