Filmmaker Karan Johar will reportedly cast an outsider to replace actor Kartik Aaryan in 'Dostana 2'. According to reports, the names of actors that have been shortlisted for the film include Akshay Kumar, Rajkummar Rao, Varun Dhawan, Sidharth Malhotra and Siddhant Chaturvedi. Karan wants to cast an outsider to avoid nepotism debate, hence his first choice is Akshay, reports added.