Arunoday Singh is an Indian actor. He made his debut with Sikandar (2009). He has appeared in films like Aisha (2010), Yeh Saali Zindagi (2011), Jism 2 (2012), Main Tera Hero (2014), Mr X (2015), Mohenjo Daro (2016) and Blackmail (2018). He also appeared in the web series Apaharan (2018-2022).

Mr. X is a 2015 Indian Hindi-language science fiction action film directed by Vikram Bhatt and produced by Mukesh Bhatt and Tanmay Bhat. The film stars Emraan Hashmi and Amyra Dastur in the lead roles. The title of the film was taken from the 1964 film Mr. X in Bombay.