Actors Arjun Rampal and Purab Kohli will be seen in an investigative thriller series, 'London Files'. The six-episode series has been directed by Sachin Pathak, the filmmaker behind shows like 'Kathmandu Connection' and 'A Simple Murder'. In addition to Arjun and Purab, 'London Files' will also feature Sapna Pabbi, Medha Rana, Gopal Datt and Eva Jane Willis in key roles.