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 Michael Eklund Barton Mathis , Dollmaker Guest Star Dylan Bruce Adam Donner Guest Star Caity Lotz The Canary Guest Star Celina Jade Shado Guest Star Roger Cross Detective Lucas Hilton Guest Star Bex Taylor-Klaus Sin Guest Star Teryl Rothery Jean Loring Guest Star Keri Adams Bethany Snow Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer, Writer Andrew Kreisberg Executive Producer David Nutter Executive Producer Glen Winter Director