Suggestions by @swifty123

Jeffrey Dean Morgan

as Thomas Wayne in The Flash (2022)

Eminem

as Captain Cold in The Flash (2022)

Ray Fisher

as Cyborg in The Flash (2022)

Dylan O'Brien

as Robin/Dick Grayson in The Flash (2022)

Matthew McConaughey

as Reverse Flash in The Flash (2022)

Maribel Verdú

as Nora Allen in The Flash (2022)

Ron Livingston

as Henry Allen in The Flash (2022)

Kiersey Clemons

as Iris West in The Flash (2022)

Michael Keaton

as Bruce Wayne in The Flash (2022)

Ben Affleck

as Batman in The Flash (2022)

Sasha Calle

as Supergirl in The Flash (2022)

Ewan McGregor

as Black Mask in Red Hood

Emilia Clarke

as Mera in Extended Justice League

Nat Wolff

as Red Hood in Red Hood

Charlie Heaton

as Red Hood in Red Hood

John Boyega

as Red Hood in Red Hood

Cameron Monaghan

as Red Hood in Red Hood

Dacre Montgomery

as Red Hood in Red Hood

Dylan O'Brien

as Red Hood in Red Hood

Ben Affleck

as Batman in Nightwing