Suggestions by @gigahank

Tom Rhys Harries

as Clayface in The DCU

Score: +3

Ozu the Dog

as Krypto the Superdog in The DCU

Score: +1

Wendell Pierce

as Perry White in The DCU

Score: +1

Anthony Carrigan

as Metamorpho in The DCU

Score: +1

Nathan Fillion

as Guy Gardner in The DCU

Score: +1

Isabela Merced

as Hawkgirl in The DCU

Score: +1

Nicholas Hoult

as Lex Luthor in The DCU

Score: +1

Neva Howell

as Ma Kent in The DCU

Score: +1

Benjamin Byron Davis

as Rupert Thorne in The DCU

Score: +1

Robert Patrick

as White Dragon in The DCU

Score: +1

Stephanie Beatriz

as Aisla MacPherson in The DCU

Score: +1

Peter Serafinowicz

as Victor Frankenstein in The DCU

Score: +1

Gregg Henry

as Edward Mazursky in The DCU

Score: +1

Michael Rooker

as Sam Fitzgibbon in The DCU

Score: +1

Steve Agee

as John Economos in The DCU

Score: +1

Jennifer Holland

as Emilia Harcourt in The DCU

Score: +1

Alan Tudyk

as Will Magnus in The DCU

Score: +1

Julian Kostov

as Alexi in The DCU

Score: +1

Maria Bakalova

as Ilana Rostovic in The DCU

Score: +1

Colin Farrell

as Sgt. Rock in The DCU

Score: +1