Suggestions by @avp_goat

Peter Claffey

as Hawkman in The Martian Manhunter

Score: +1

David Harbour

as Wildcat in The Martian Manhunter

Score: +1

Ralph Fiennes

as Doctor Fate in The Martian Manhunter

Score: +1

Michael Sheen

as The Mad Hatter in The Martian Manhunter

Score: +1

Nicolas Cage

as Doctor Destiny in The Martian Manhunter

Score: +1

Toby Kebbell

as Larfleeze in The Martian Manhunter

Score: +1

Richard Armitage

as Thaal Sinestro in The Martian Manhunter

Score: +1

John Turturro

as Inspector Moretti in The Martian Manhunter

Score: +1

Jeffrey Wright

as Abin-Sur in The Martian Manhunter

Score: +1

Dan Stevens

as Batman in Batman: Penance

Score: +1

David Jonsson

as Detective Bennett in The Martian Manhunter

Score: +1

Michiel Huisman

as Deadshot in Nightwing - Season 1

Score: +1

Drew Starkey

as Ravager in Nightwing - Season 1

Score: +1

Andrew Lincoln

as David Cain in Nightwing - Season 1

Score: +1

Nick Robinson

as Nightwing in Nightwing - Season 1

Score: +1

Jack O'Connell

as Clayface in The Martian Manhunter

Score: +1

Rhea Seehorn

as Detective Meade in The Martian Manhunter

Score: +1

Lupita Nyong'o

as M'yri'ah J'onzz in The Martian Manhunter

Score: +1

Djimon Hounsou

as Ma'alefa'ak in The Martian Manhunter

Score: +1

Christian Convery

as Robin II in Nightwing - Season 1

Score: +1