| Character | Actor | Role Description | | :--- | :--- | :--- | | | Ridhima Tiwari | The protagonist, a disillusioned housewife whose world is turned upside down when she finds the Walkman. | | Sunita | Ayushi Jaiswal | A pivotal character in Roshni's journey. | | Daya Bhabhi | Komal Sharma | Roshni's sister-in-law who introduces her to a doctor. | | Manoj | Kasim | Roshni's husband's friend, with whom she begins an affair. | | Chandan | Dheeraj | Another key character in Roshni's life. |
The success of Ullu web series heavily relies on its cast, who are well-known faces in the Indian OTT adult-drama circuit. walkman episode 02 18 ullu web series hiwebxseriescom