Grant Gustin Barry Allen, The Flash Actor Candice Patton Iris West Actor Danielle Panabaker Caitlin Snow Actor Jesse L. Martin Detective Joe West Actor Danielle Nicolet Cecile Actor Kayla Compton Allegra Garcia Actor Brandon McKnight Chester P. Runk Actor Rick Cosnett Detective Eddie Thawne Guest Star Robbie Amell Ronnie Raymond, Deathstorm Guest Star Michelle Harrison Nora Allen Guest Star Natalie Dreyfuss Sue Dearbon Guest Star Alexa Barajas Ultraviolet, Esperanza Garcia Guest Star Jon Cor Mark Blaine, Chillblaine Guest Star Milton Barnes Quincy Runk Guest Star Teddy Sears Zoom Guest Star Greg Berlanti Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Sarah Schechter Executive Producer Chris Peppe Director Sam Chalsen Writer Joshua V. Gilbert Writer Nathaniel Blume Original Music Blake Neely Original Music Brenton Spencer Cinematographer, Film Editor Lyndsey Baldasare Casting David Rapaport Casting Simone Gore Art Director Clayton Allen Set Decoration Joanne Leblanc Set Decoration