Murad, an underdog, struggles to convey his views on social issues and life in Dharavi through rapping. His life changes drastically when he meets a local rapper, Shrikant alias MC Sher.

Ranveer Singhas Murad Ahmed / Gully Boy
Alia Bhattas Safeena Firdausi
Siddhant Chaturvedias Shrikant Bhosie / MC Sher
Vijay Raazas Aftab Ahmed
Vijay Varmaas Moeen Arif
Amruta Subhashas Razia Ahmed
Sheeba Chaddhaas Hamida Firdausi
Kalki Koechlinas Shweta / Sky
Jyoti Subhashas Dadi