Suggestions by @adamreece
544 suggestions
Josh Brolin
as Jonah Hex (Hayward) in The Flash 2
Keanu Reeves
as John Constantine (Lawrence) in The Flash 2
Shaquille O'Neal
as Steel (Clooney) in The Flash 2
Nicholas Cage
as Superman (Clooney) in The Flash 2
Black Lightning (Arrowverse)
as Black Lightning (Earth-73) in The Flash 2
Green Arrow (Arrowverse)
as Green Arrow (Arrowverse) in The Flash 2
Green Lantern (Ryan Reynolds)
as Green Lantern (Campbell) in The Flash 2
Justin Hartley
as Aquaman (Beeman) in The Flash 2
Green Arrow (Smallville)
as Green Arrow (Smallville) in The Flash 2
Superman (Smallville)
as Superman (Smallville) in The Flash 2
Marlon Wayans
as Robin (Keaton) in The Flash 2
Chris O'Donnell
as Robin (Clooney) in The Flash 2
Robin (Burt Ward)
as Robin (Dozier) in The Flash 2
Batman (Adam West)
as Batman (Dozier) (CGI due to Adam West’s death) in The Flash 2
Adrianne Palicki
as Wonder Woman (Kelly) in The Flash 2
Wonder Woman (Cathy Lee Crosby)
as Wonder Woman (McEeevty) in The Flash 2
Lynda Carter
as Wonder Woman (Horn) in The Flash 2
Gal Gadot
as Wonder Woman in The Flash 2
Helen Slater
as Supergirl (Donner) in The Flash 2
Grant Gustin
as Johnny Quick (Earth-27) in The Flash 2