Stephen Amell Oliver Queen, Green Arrow Actor David Ramsey John Diggle, Spartan Actor Willa Holland Thea Queen 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 Colton Haynes Roy Harper Guest Star Kirk Acevedo Ricardo Diaz Guest Star David Nykl Anatoly Knyazev Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Kristin Windell Director Christos N. Gage Writer Ruth Fletcher-Gage Writer