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 Vinnie Jones Danny Brickwell Guest Star Rila Fukushima Tatsu Yamashiro Guest Star J.R. Ramirez Ted Grant Guest Star Bex Taylor-Klaus Sin Guest Star Arien Boey Young Tommy Guest Star Michael Cram Malcolm's Friend Guest Star Laura Adkin Rebecca Merlyn Guest Star Taylor Dianne Robinson Young Nyssa Guest Star Jacob Hoppenbrouwer Young Oliver Guest Star Greg Berlanti Executive Producer Marc Guggenheim Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Jesse Warn Director Beth Schwartz Writer Brian Ford Sullivan Writer