Suggestions by @justinkelly

Nathan Jones

as Mongul in The Martian Manhunter

Score: -1

Tessa Thompson

as Bel Juz in The Martian Manhunter

Score: +1

Alan Tudyk

as Manhunter in The Martian Manhunter

Score: +1

Tika Sumpter

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

Score: +1

Saniyya Sidney

as K'hym J'onzz in The Martian Manhunter

Score: +1

Sasha Luss

as Cha'rissa in The Martian Manhunter

Score: +1

Harry Shum Jr.

as Jemm in The Martian Manhunter

Score: +1

Barkhad Abdi

as Cha'rnn O'zzm in The Martian Manhunter

Score: +1

Mark Wahlberg

as A'Monn A'Mokk in The Martian Manhunter

Score: -1

LaKeith Stanfield

as J'onn J'onzz in The Martian Manhunter

Score: +2

Maddie Ziegler

as M'gann M'orzz in The Martian Manhunter

Score: +1

Matt Damon

as B'enn Bla'nx in The Martian Manhunter

Score: +1

Jimmy Smits

as Saul Erdel in The Martian Manhunter

Score: +1

Bokeem Woodbine

as Ma'alefa'ak J'onzz in The Martian Manhunter

Score: +1

Keith David

as H'ronmeer in The Martian Manhunter

Score: +1

Skai Jackson

as K'hym J'onzz in The Martian Manhunter

Score: -1

Laurence Fishburne

as M'yrnn J'onzz in The Martian Manhunter

Score: +1

Toby Jones

as Saul Erdel in The Martian Manhunter

Score: -1

Paula Patton

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

Score: -1

Sterling K. Brown

as J'onn J'onzz in The Martian Manhunter

Score: 0