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 Robbie Amell Ronnie Raymond Guest Star Rick Cosnett Detective Eddie Thawne Guest Star Wentworth Miller Leonard Snart, Captain Cold Guest Star John Wesley Shipp Jay Garrick, The Flash Guest Star Greg Berlanti Executive Producer Andrew Kreisberg Executive Producer David Nutter Executive Producer Sarah Schechter Executive Producer Gregory Smith Director Brooke Roberts Writer Judalina Neira Writer