Dr. Animesh Joshi, known as Nana, is identified through the plot as Ray Acharya's scientist grandfather. He leaves Ray the extraordinary camera whose photographs can predict the future, making his scientific work the foundation of Ray's sudden wealth, romantic changes, and later danger.
Anindya Pakrashi is the son of a prominent Kolkata businessman and has returned from the West. Entrusted with handling a deal with German businessmen, he finds Karabi Guha's help valuable and falls in love with her. After Karabi takes her own life, he is left heartbroken; his later fate is unclear.
Inspector Shankar is assigned to investigate the mysterious death of Sunder Singh, whose ship wrecked during a storm. As he pursues the case, he and Sheila fall in love, placing him at the center of both the investigation and the developing romance.
Shankar is the owner of Raykuthi, the remote bungalow at the center of the mystery, and the father of Ranu. The story links him to his deceased wife, Aparna, whose likeness appears singing and walking in the nearby jungle, seemingly drawing both him and his daughter into the haunting events.
Ramesh is Jwala Prasad's son and Sudha's husband. He agrees to marry Sudha so his father will fund his trip to London, then leaves soon after the ceremony without seeing her. In London he befriends Gupte and Jenny, who loves him, and later falls for Sudha when she arrives using the name Sushma.
Bade Bhaiya is identified in the cast list as the elder brother. The plot summary says that Saaheb's brothers demotivate him about football, but it does not identify which brother does so or describe Bade Bhaiya's individual actions, so no further role in the events can be established.
Biswajeet Chatterjee has 41 screen credits in a career dating back to 1960. Signature works include Ke Tumi, Shararat, Kuheli. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.