Stephen Amell Oliver Queen, Green Arrow Actor David Ramsey John Diggle, Spartan Actor Emily Bett Rickards Felicity Smoak Actor Katie Cassidy Laurel Lance, Black Siren Actor Paul Blackthorne Quentin Lance Actor Echo Kellum Curtis Holt, Mr. Terrific Actor Juliana Harkavy Dinah Drake, Black Canary Actor Rick Gonzalez Rene Ramirez, Wild Dog Actor Kirk Acevedo Ricardo Diaz Guest Star Caity Lotz Sara Lance Guest Star David Nykl Anatoly Knyazev Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer, Writer Andrew Kreisberg Executive Producer David Nutter Executive Producer James Bamford Director Wendy Mericle Writer