Suggestions by @micchael

J.K. Simmons

as Commisiner Gordon in Batman

Score: +1

Jeremy Irons

as Alfred Pennyworth in Batman

Score: +1

Ben Affleck

as Bruce Wayne in Batman

Score: +1

Chiwetel Ejiofor

as Martian Manhunter in Superman

Score: +1

William Jackson Harper

as Ron Troupe in Superman

Score: +1

Lili Reinhart

as Cat Grant in Superman

Score: +1

Patrick Warburton

as Steve Lombard in Superman

Score: +1

Wendell Pierce

as Perry White in Superman

Score: +1

Aubrey Plaza

as Livewire in Superman

Score: +1

Jason Momoa

as Lobo in Superman

Score: +1

Tony Todd

as Parasite in Superman

Score: +1

Chris Pratt

as Krypto The Superdog in Superman

Score: +1

Nicholas Hoult

as Lex Luthor in Superman

Score: +1

Skyler Gisondo

as Jimmy Olsen in Superman

Score: +1

Rachel Brosnahan

as Lois Lane in Superman

Score: +1

Wolfgang Novogratz

as Clark Kent in Superman

Score: +1

David Corenswet

as Clark Kent in Superman

Score: +1