Victor Garber Professor Stein, Half of Firestorm Actor Brandon Routh Ray Palmer, Atom Actor Dominic Purcell Mick Rory, Heat Wave Actor Nick Zano Dr. Nate Heywood, Citizen Steel Actor Caity Lotz Sara Lance, White Canary Actor Maisie Richardson-Sellers Amaya Jiwe, Vixen Actor Amy Louise Pemberton Gideon Voice Tala Ashe Zari Adrianna Tomaz Actor Neal McDonough Damien Darhk Actor Keiynan Lonsdale Wally West, Kid Flash Actor Luke Bilyk Elvis Presley, Jesse Presley Guest Star Geoffrey Blake Uncle Lucious Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer Phil Klemmer Executive Producer Chris Fedak Executive Producer Sarah Schechter Executive Producer David Geddes Director Matthew Maala Writer Tyrone B. Carter Writer