Grant Gustin Barry Allen, The Flash Actor Candice Patton Iris West Actor Danielle Panabaker Caitlin Snow Actor, Director Danielle Nicolet Cecile Actor Kayla Compton Allegra Garcia Actor Brandon McKnight Chester P. Runk Actor Jon Cor Mark Blaine Actor Stephen Amell Guest Star David Ramsey Guest Star Keiynan Lonsdale Guest Star Sendhil Ramamurthy Guest Star Greg Berlanti Executive Producer Sarah Schechter Executive Producer Eric Wallace Executive Producer Sam Chalsen Executive Producer, Writer Jonathan Butler Executive Producer Emily Palizzi Writer