Suggestions by @user2447

Sterling K. Brown

as HANK HENSHAW in SUPERMAN

Score: -1

Edi Gathegi

as MICHAEL HOLT in SUPERMAN

Score: +1

Eddie Gathegi

as MICHAEL HOLT in SUPERMAN

Score: -1

Brainiac (New 52)

as THE TERRORIST in SUPERMAN

Score: -1

Spoiler

as THE TERRORIST in SUPERMAN

Score: +1

Milly Alcock

as KARA KENT in SUPERMAN

Score: +1

Ed Skrein

as JOHN CORBEN in SUPERMAN

Score: +1

Frank Grillo

as JOHN CORBEN in SUPERMAN

Score: +1

Michael Rooker

as SAM LANE in SUPERMAN

Score: +1

Micheal Rooker

as SAM LANE in SUPERMAN

Score: -1

Gemma Chan

as MERCY GRAVES in SUPERMAN

Score: +1

Alexander Skarsgård

as LEX LUTHOR in SUPERMAN

Score: -1

Douglas Smith

as JIMMY OLSEN in SUPERMAN

Score: -1

Justice Smith

as JIMMY OLSEN in SUPERMAN

Score: -1

Rachel Brosnahan

as LOIS LANE in SUPERMAN

Score: +1

Emma Mackey

as LOIS LANE in SUPERMAN

Score: -1

David Corenswet

as CLARK KENT in SUPERMAN

Score: +1