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 Keiynan Lonsdale Wally West, Kid Flash Actor Tom Felton Julian Albert Actor Violett Beane Jesse Wells, Jesse Quick Guest Star Grey Damon Sam Scudder, Mirror Master Guest Star Ashley Rickards Rosalind Dillon, Top Guest Star Wentworth Miller Leonard Snart, Captain Cold Guest Star Greg Berlanti Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Sarah Schechter Executive Producer Stefan Pleszczynski Director Benjamin Raab Writer Deric A. Hughes Writer