Uttam Kumar as Byomkesh Bakshi

Shailen Mukherjee as Ajit Bandyopadhyay

Shyamal Ghoshal as Dr. Bhujangadhar Das

Gitali Roy as Sunayana

Bankim Ghosh as Brajadas

Chinmoy Roy as Panu Gopal

Subhendu Chatterjee as Bijoy

Kalipada Chakraborty as Rasiklal

Nripati Chatterjee as Mushkil Mia

Subrata Chattopadhyay as Najar Bibi

Nilotpal Dey as Inspector

Asit Baran as Inspector Barat

Shekhar Chattopadhyay as