Grant Gustin Barry Allen, The Flash Actor Candice Patton Iris West Actor Danielle Panabaker Caitlin Snow Actor Carlos Valdes Cisco Ramon, Vibe Actor Tom Cavanagh Dr. Harrison Wells Actor Jesse L. Martin Detective Joe West Actor Hartley Sawyer Ralph Dibny Actor Danielle Nicolet Cecile Actor Efrat Dor Eva Guest Star Greg Berlanti Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Sarah Schechter Executive Producer Jeff Byrd Director Jonathan Butler Writer Gabriel Garza Writer