Victor Garber Professor Stein, Half of Firestorm Actor Brandon Routh Ray Palmer, Atom Actor Arthur Darvill Rip Hunter Actor Dominic Purcell Mick Rory, Heat Wave Actor Caity Lotz Sara Lance, White Canary Actor Franz Drameh Jefferson "Jax" Jackson, Half of Firestorm Actor Nick Zano Dr. Nate Heywood, Citizen Steel Actor Matt Letscher Eobard Thawne, Reverse-Flash Actor Maisie Richardson-Sellers Amaya Jiwe, Vixen Actor Amy Louise Pemberton Gideon Voice Patrick J. Adams Rex Tyler, Hourman Guest Star André Eriksen Baron Krieger Guest Star Matthew MacCaull Henry Heywood, Commander Steel Guest Star Sarah Grey Courtney Whitmore, Stargirl Guest Star Kwesi Ameyaw Charles McNider, Dr. Mid-Nite Guest Star Dan Payne Todd Rice, Obsidian Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer Phil Klemmer Executive Producer Chris Fedak Executive Producer, Writer Sarah Schechter Executive Producer Michael Grossman Director Sarah Nicole Jones Writer