Stephen Amell Oliver Queen Actor Colin Donnell Tommy Actor Katie Cassidy Laurel Lance Actor David Ramsey John Diggle Actor Willa Holland Thea Queen Actor Susanna Thompson Moira Queen Actor Paul Blackthorne Detective Quentin Lance Actor Jessica De Gouw Helena Bertinelli , The Huntress Guest Star Kelly Hu China White Guest Star Colin Salmon Walter Steele Guest Star Jeffrey Nordling Frank Bertinelli Guest Star Christie Laing Carly Diggle Guest Star Emily Bett Rickards Felicity Smoak Guest Star David Lyle Zhishan Guest Star John Barrowman Malcolm Merlyn Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer, Writer David Nutter Executive Producer Kenneth Fink Director Beth Schwartz Writer