The cast includes LaMonica Garrett as the Monitor, Stephen Amell as Green Arrow, Grant Gustin as The Flash, Melissa Benoist as Supergirl, Matt Ryan as Constantine, Elizabeth Tullock as Lois Lane, Candice Patton as Iris West, John Wesley Shipp as The Flash, Carlos Valdes as Cisco, Cress Williams as Black Lightning, Dominic Purcell as Mick, Caity Lotz as Sarah Lance, Brandon Routh as Superman, Jon Cryer as Lex Luthor, David Harewood as J'onn J'onzz, Erica Durance from Smallville, Johnathon Schaech as Jonah Hex, with Burt Ward, Osric Chau plays The Atom, Ashley Scott returns from Birds of Prey as Huntress, Stephen Lobo as the Spectre, Tom Cavanagh as Pariah, with additional actors and characters also appearing.