Grant Gustin Barry Allen, The Flash Actor Candice Patton Iris West Actor Danielle Panabaker Caitlin Snow Actor, Director Carlos Valdes Cisco Ramon, Vibe Actor Tom Cavanagh Dr. Harrison Wells Actor Jesse L. Martin Detective Joe West Actor Hartley Sawyer Ralph Dibny Actor Brandon McKnight Chester P. Runk Guest Star Danielle Nicolet Cecile Actor Greg Berlanti Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Sarah Schechter Executive Producer Thomas Pound Writer Jeff Hersh Writer