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 Cynthia Addai-Robinson Amanda Waller Guest Star Audrey Marie Anderson Lyla Michaels Guest Star Michael Rowe Deadshot Guest Star Summer Glau Isabel Rochev Guest Star Teryl Rothery Jean Loring Guest Star Celina Jade Shado Guest Star Caity Lotz Sara Lance Guest Star Dylan Neal Dr. Anthony Ivo Guest Star David Nykl Anatoly Knyazev Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Guy Bee Director Ben Sokolowski Writer Beth Schwartz Writer