Suggestions by @dickcooper

Bill Skarsgård

as Guardian in Starfire

Jensen Ackles

as Batman in Starfire

Conor Leslie

as Troia in Starfire

Anthony Starr

as Reverse Flash in Starfire

Ryan Potter

as Beast Boy in Starfire

Liev Schreiber

as Jonah Hex in The Outsiders

Nathan Fillion

as Parasite in The Outsiders

Ice Cube

as Clayface in The Outsiders

Sasha Calle

as Scandal Savage in The Outsiders

Kira Kosarin

as Auriana Berthely in The Outsiders

Mckenna Grace

as XS in The Outsiders

Sabrina Carpenter

as Linda Park in The Outsiders

Iain Glen

as Ra's al ghul in The Outsiders

Anna Diop

as Starfire in The Outsiders

Jacob Tremblay

as Kid Flash II in The Outsiders

Brandon Soo Hoo

as Matt Logan in The Outsiders

Willa Holland

as Miss Martian in The Outsiders

Clancy Brown

as Jackal in Nightwing

Emma Myers

as Artemis Crock in Nightwing

Taika Waititi

as Flamingo in Nightwing