Suggestions by @aaronkime

Marcus Johnson

as Martian Manhunter (J'onn J'onzz) in DCU

Julian Haig

as Killer Moth (Drury Walker) in DCU

Dave Bautista

as Kalibak in DCU

Luke Mitchell

as John Constantine in DCU

Joel Edgerton

as Jim Gordon in DCU

Odessa A'zion

as Jade (Jennie-Lynn Hayden) in DCU

Madelyn Cline

as Iris West-Allen in DCU

Sope Dirisu

as Icon (Arnus/Augustus Freeman) in DCU

Tom Holland

as Hourman (Rick Tyler) in DCU

Essie Davis

as Hippolyta in DCU

Shemar Moore

as Heat Wave (Mick Rory) in DCU

Anthony Hayes

as Harvey Bullock in DCU

Jessica Rothe

as Harley Quinn (Harleen Quinzel) in DCU

Kyle Gallner

as Green Arrow (Oliver Queen) in DCU

Meryl Streep

as Granny Goodness in DCU

Chris Sullivan

as Gorilla Grodd in DCU

Daisy Jelley

as Godiva (Dora Leigh) in DCU

Burak Hakkı

as General Zod (Dru-Zod) in DCU

Dan Stevens

as Gentleman Ghost (James Craddock) in DCU

Henry Lawfull

as Flash (Wally West) in DCU