Missing

Black Siren returns to give Chase help; Felicity plans a birthday party for Oliver; Lance is angry with Rene for missing the custody hearing about his daughter.

Katie Cassidy

Laurel Lance / Black Siren

John Barrowman

Malcolm Merlyn

Manu Bennett

Slade Wilson / Deathstroke

Katrina Law

Nyssa al Ghul

Dolph Lundgren

Konstantin Kovar

Madison McLaughlin

Evelyn Sharp

Byron Mann

Yao Fei Gulong

AJ Crivello-Jones

A.R.G.U.S. Guard #2

Marc-Anthony Massiah

Agent Kosinski

Ish Morris

A.R.G.U.S. Guard #1

Taras Kostyuk

Gennady

Keri Adams

Bethany Snow