Imaikkaa Nodigal

Nayanthara

(Anjali Vikramadithyan IPS)

Anurag Kashyap

(Martin 'Rudra' Roy)

Atharvaa Murali

(Arjun)

Raashii Khanna

(Krithika Rao)

Manasvi Kottachi

(Shalini Vikramadithyan)

Ramesh Thilak

(Arjun's friend)

Vijay Sethupathi

(Vikramadithyan)

Devan

(CBI Officer Narayan Gowda)

Udhayabanu Mageswaran

(CBI Chief)

Vetrivel Raja

()

Vinoth Kishan

(Dr. Vineeth)

Jeeva Ravi

(Victim's father (uncredited))

Raveena Ravi

(Krithika Rao (Voice))

Magizh Thirumeni

(Ex-ACP Martin 'Rudra' Roy (voice))

Chetan

(CBI Officer Narayan Gowda (voice))