Stephen Amell Oliver Queen, Green Arrow Actor David Ramsey John Diggle, Spartan Actor Willa Holland Thea Queen Actor Emily Bett Rickards Felicity Smoak Actor John Barrowman Malcolm Merlyn Actor Paul Blackthorne Quentin Lance Actor Echo Kellum Curtis Holt, Mr. Terrific Actor Josh Segarra Adrian Chase, Prometheus Actor Rick Gonzalez Rene Ramirez, Wild Dog Guest Star Juliana Harkavy Dinah Drake Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer, Writer Andrew Kreisberg Executive Producer David Nutter Executive Producer Kristin Windell Director