Q: Context: Parmanu: The Story of Pokhran (transl. Atom: The Story of Pokhran; Hindi pronunciation: ( pəɾmaːɳʊ) ) is a 2018 Indian historical action drama film directed by Abhishek Sharma and jointly written by Saiwyn Quadras, Sanyuktha Chawla Sheikh and Abhishek Sharma. It was produced by the banners Zee Studios and JA Entertainment. The film is based on the nuclear bomb test explosions conducted by the Indian Army at Pokhran in 1998. It stars John Abraham and Diana Penty in lead roles, with Boman Irani and Anuja Sathe.

Question: what is the name of actress in parmanu? Let's give stream of consciousness first:
To answer the question, consider the following: It stars John Abraham and Diana Penty in lead roles, with Boman Irani and Anuja Sathe. Therefore, the final answer is Diana Penty.