Acteurs et actrices

Grant Gustin = Barry Allen/Flash (fils de Henry Allen)

Danielle Panabaker = Caitlin Snow

Carlos Valdes =Cisco Ramon 

Candice Patton = Iris West (filles de Joe/Joseph)

Jesse L. Martin = Joe West/Joseph West (père d'Iris)

Patrick Sabongui = Capitaine David Singh

Rick Cosnett = Eddie Thawne

John Wesley = Henry Allen

Michelle Harrison = Nora Allen

Stephen Amell = Oliver Queen

Malese Jow = Linda Park

John Wesley Shipp = Henry Allen (père de Barry/Flash)