Stephen Amell Oliver Queen Actor Katie Cassidy Laurel Lance Actor Willa Holland Thea Queen Actor Colton Haynes Roy Harper Actor David Ramsey John Diggle Actor Emily Bett Rickards Felicity Smoak Actor Manu Bennett Slade Wilson Actor Susanna Thompson Moira Queen Actor Paul Blackthorne Detective Quentin Lance Actor Caity Lotz Sara Lance Guest Star Celina Jade Shado Guest Star Dylan Neal Dr. Anthony Ivo Guest Star Artine Tony Browne Hendrick Von Arnim Guest Star James Pizzinato Thomas Flynn Guest Star David Nykl Anatoly Knyazev Guest Star Ron Selmour The Butcher Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Glen Winter Director Jake Coburn Writer Ben Sokolowski Writer