Stephen Amell Oliver Queen Actor Katie Cassidy Laurel Lance Actor David Ramsey John Diggle Actor Willa Holland Thea Queen Actor Emily Bett Rickards Felicity Smoak Actor Colton Haynes Roy Harper Actor John Barrowman Malcolm Merlyn Actor Paul Blackthorne Captain Quentin Lance Actor J.R. Ramirez Ted Grant Guest Star Karl Yune Maseo Yamashiro Guest Star Rila Fukushima Tatsu Yamashiro Guest Star Amy Gumenick Carrie Cutter , Cupid Guest Star Nathan Mitchell Isaac Stanzler Guest Star Alison Araya Officer Lopez Guest Star Brandon Nomura Akio Yamashiro Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Peter Leto Director Erik Oleson Writer Keto Shimizu Writer