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 Franz Drameh Jefferson "Jax" Jackson, Half of Firestorm 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 Wentworth Miller Leo Snart, Citizen Cold Guest Star Courtney Ford Nora Darhk Guest Star Graeme McComb Young Martin Stein Guest Star John Noble Mallus Guest Voice Jes Macallan Ava Sharpe Guest Star Thor Knai Leif Erikson Guest Star Katia Winter Freydis Eriksdottir Guest Star Ben Diskin Beebo Guest Voice Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer Phil Klemmer Executive Producer Chris Fedak Executive Producer Sarah Schechter Executive Producer Kevin Mock Director Grainne Godfree Writer James Eagan Writer