Suggestions by @chaotichans

Ralph Fiennes

as Hugo Strange in James Gunn's DCU

Score: +1

Luke Mitchell

as Oliver Queen in James Gunn's DCU

Score: +1

Nicholas Hoult

as Thomas Elliot in James Gunn's DCU

Score: +1

Olivia Cooke

as Andrea Beaumont in James Gunn's DCU

Score: +1

Jamie Campbell Bower

as Jonathan Crane in James Gunn's DCU

Score: +1

Lashana Lynch

as Mari McCabe in James Gunn's DCU

Score: +1

Penn Badgley

as Scot in James Gunn's DCU

Score: +1

George MacKay

as Barry Allen in James Gunn's DCU

Score: +1

Oliver Jackson-Cohen

as Bruce Wayne in James Gunn's DCU

Score: +1

Britain Dalton

as Wally West in James Gunn's DCU

Score: +1

Brandon Soo Hoo

as Ryan Choi in James Gunn's DCU

Score: +1

Rish Shah

as Simon Baz in James Gunn's DCU

Score: +1

Chibuikem Uche

as Victor Stone in James Gunn's DCU

Score: +1

Cooper van Grootel

as Roy Harper in James Gunn's DCU

Score: +1

Thomasin McKenzie

as Lilith Clay in James Gunn's DCU

Score: +1

Mckenzie Small

as Koriand'r in James Gunn's DCU

Score: +1

Diego Tinoco

as Kyle Rayner in James Gunn's DCU

Score: +1

Madison Bailey

as Helena Bertinelli in James Gunn's DCU

Score: +1

Justin Prentice

as Guy Gardner in James Gunn's DCU

Score: +1

Joseph Gilgun

as Jack Napier in James Gunn's DCU

Score: +1