Danielle Campbell as TESSA MERLYN
"Wonder Star"

Stephen Amell as OLIVER QUEEN
"Arrow"

Willa Holland as THEA QUEEN
"Speedy"

Emily Bett Rickards as FELICITY SMOAK

Colton Haynes as ROY HARPER
"Arsenal"

Katie Cassidy as LAUREL LANCE
"Black Canary"

David Ramsey as JOHN DIGGLE

Brandon Routh as RAY PALMER
"Atom"

Paul Blackthorne as QUENTIN LANCE

John Barrowman as MALCOLM MERLYN
"The Dark Archer"

Sebastian Stan as JAMES MORGAN

Marie Avgeropoulos as OCTAVIA

Claire Holt as EMMA DECKER

Jesse Lee Soffer as JAY HALSTEAD

Daniel Sharman as AARON STEVENS

Katrina Law as NYSSA AL GHUL

And:
Colin Donnell as TOMMY MERLYN

Special Guest Star:

Grant Gustin as BARRY ALLEN
"Flash"

Danielle Panabaker as CAITLIN SNOW

Carlos Valdes as CISCO RAMON