Suggestions by @nubbo

Josh Duhamel

as Deathstroke in Green Arrow & Black Canary: Outsiders

Wunmi Mosaku

as Director Amanda Waller in Green Arrow & Black Canary: Outsiders

Finn Wittrock

as Vigilante in Green Arrow & Black Canary: Outsiders

Javon Walton

as Speedy in Green Arrow & Black Canary: Outsiders

Ryan Gosling

as Booster Gold in Green Arrow & Black Canary: Outsiders

Alden Ehrenreich

as Blue Beetle in Green Arrow & Black Canary: Outsiders

Jamie Dornan

as Metamorpho in Green Arrow & Black Canary: Outsiders

Jack Quaid

as Plastic Man in Green Arrow & Black Canary: Outsiders

Jodie Turner-Smith

as Vixen in Green Arrow & Black Canary: Outsiders

Leslie Odom Jr.

as Black Lightning in Green Arrow & Black Canary: Outsiders

Toby Leonard Moore

as The Question in Green Arrow & Black Canary: Outsiders

Rina Sawayama

as Katana in Green Arrow & Black Canary: Outsiders

Jodie Comer

as Black Canary in Green Arrow & Black Canary: Outsiders

John Boyega

as Green Arrow in Green Arrow & Black Canary: Outsiders

Zendaya

as The Missing Link in J’onn

Spoiler

as The Missing Link in J’onn

Patrick Wilson

as Dr. Kent Nelson in J’onn

Omari Hardwick

as Carter Hall in J’onn

David Oyelowo

as Ma’alefa’ak in J’onn

Carl Weathers

as M’yrnn J’onzz in J’onn