The ensemble cast of "Oshomoy" includes Tariq Anam Khan, Monira Mithu, Iresh Zaker, Sharaf Ahmed Jibon, Runa Khan, Intekhab Dinar, Shahed Ali, Shashwta Datta, Shimul Sharma, Lamima Lam, Ishrat Zaheen Ahmed, Ziaul Hoque Polash, and others, contributing to the film's overall appeal.