<P> The season was ordered in May 2017 , and production began the following month . Ben McKenzie stars as Gordon , alongside Donal Logue , David Mazouz , Morena Baccarin , Sean Pertwee , Robin Lord Taylor , Erin Richards , Camren Bicondova , Cory Michael Smith , Jessica Lucas , Chris Chalk , Drew Powell , Crystal Reed and Alexander Siddig . The fourth season premiered on September 21 , 2017 , on Fox , while the second half premiered on March 1 , 2018 . </P>
when does the new gotham season come out
September 21 , 2017