Season 1 cast

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Main

 * Anil Kapoor as Jai Singh Rathod, based on Jack Bauer
 * Mandira Bedi as Nikita Rai, ATU's second-in-command, based on Nina Myers and who later assumes responsibilities similar to Michelle Dessler
 * Tisca Chopra as Trisha Rathod, based on Teri Bauer
 * Ajinkya Deo as Abhay / Karthik Chandrasekharan, based on Alan York / Kevin Carroll
 * Anita Raaj as Naina Singhania, Aditya's mother and head of a political dynasty
 * Neil Bhoopalam as Aditya Singhania, India's youngest candidate for Prime Minister, based on David Palmer
 * Adhir Bhatt as Tejpal Singh, ATU's third-in-command, based on Tony Almeida
 * Sapna Pabbi as Kiran Rathod, Jai and Trisha's daughter, based on Kim Bauer
 * Yuri Suri as Gill, based on George Mason
 * Anupam Kher as Wasim Khan, based on Richard Walsh
 * Shivani Tanksale as Divya Singhania, Aditya's sister

Recurring

 * Raghav Chanana as Prithvi Singhania, Aditya's cousin and advisor
 * Shabana Azmi as ATU official Abhilasha Grewal, based on Alberta Green
 * Adhish Khanna as Veer Singh Rathod, Jai and Trisha's son
 * Nikkitasha Marwaha as Mehr, based on Mandy
 * Rajat Kaul as Max Ferraro, based on Jonathan Matijevich
 * Priyanshu Cora as Rohit, based on Rick Allen
 * Kiran Srinivas as Dev, based on Dan Mounts
 * Shivkumar Subramaniam as Kamaljit Sood, based on Ryan Chappelle
 * Rahul Khanna as suspect Tarun Khosla, based on Ted Cofell
 * Aradhana Jagota as Jhanvi Gupta, based on Janet York
 * Suchitra Pillai-Malik as Mehek Ahuja, based on Maureen Kingsley
 * Ankur Vikal as Yakub Sayeed, based on Ira Gaines
 * Kishore Kadam as Ravindran, based on Victor Drazen
 * Nikunj Malik as Simran, based on Melanie (Day 1)
 * Pooja Ruparel as Pooja Bharadwaj, based on Patty Brooks
 * Bikramjeet Kanwarpal (credited sometimes as Major Bikramjeet) as SFG Agent Pradhan, based on Aaron Pierce
 * Dibyendu Bhattacharya as Raja, based on Andre Drazen
 * Shahnawaz Pradhan as KK, based on Carl Webb
 * Faiza Jalali as Jiah, based on Jamey Farrell
 * Nissar Khan as Murad Ali, based on Mark DeSalvo
 * Gurpreet Saini as Mihir, based on Milo Pressman
 * Rajeev Siddhartha as Bala, based on Alexis Drazen
 * Guarev Bakshi as Agent Kabir, an agent who assists Jai Singh with the rescue of his family
 * Richa Chadda as Sapna, based on Lauren Proctor
 * Rahul Singh as Vikrant Maurya, Aditya's brother-in-law
 * Gandhi as an ATU field agent based on Bundy
 * Additional uncredited actors portrayed Shaina (based on Bridgit) and Sahil, an informant based on Scott Baylor