Special Guest Stars Emily Bett Rickards as Felicity Smoak Guest Stars Casper Crump as Vandal Savage Falk Hentschel as Carter Hall / Hawkman Martin Donovan as Zaman Druce Isabella Hofmann as Clarissa Stein Katrina Law as Nyssa Raatko Stacie Greenwell as Beverly Jackson Co Starring Donald Sales as Time Master Gatekeeper David Chin as Time Master Guard