• Guest Starring: Michelle Harrison (Nora Allen), Chad Rook (Clyde Mardon), Patrick Sabongui (David Singh), Al Sapienza (Detective Fred Chyre)
• And: John Wesley Shipp (Henry Allen)
• Special Guest Star: Stephen Amell (Oliver Queen aka The Arrow)
• Co-Starring: Alistair Abell (ER Doctor), Yoshie Bancroft (Nurse #2), Osmond Bramble (Uniform With Junkie), Lauren Carnovale (Barista), Fulvio Cecere (Officer Vukuvich), Olivia Cheng (Linda Park), Jennifer Cheon (Paramedic #1), Gigi Jackman (Bank Teller), Dee Jay Jackson (Laundry Guy), Matt Kelly (Coroner), Jennifer Kitchen (Female Dispacher), Nelson Leis (Scraggly Witness), Dagan Nish (Junkie), Troy Rudolph (Paramedic #2), Eli Shapera (Bully #1), Logan Williams (Young Barry Allen), Brendon Zub (Kyle)
• Teleplay By: Andrew Kreisberg & Geoff Johns
• Directed By: David Nutter

• Guest Starring: Patrick Sabongui (David Singh), Michael Christopher Smith (Danton Black)
• With: William Sadler (Simon Stagg)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Michasha Armstrong (Java), Evelyn Chew (Woman), Emily Delahunty (Paige), Amina Elkatib (Young Iris), Eli Gabay (Fire Chief), Suzanne Ristic (Tenant), Patrick Roccas (Prison Guard), Ronald Patrick Thompson (Samaritan), Seth Whittaker (Security Guard), Logan Williams (Young Barry)
• Teleplay By: Andrew Kreisberg & Geoff Johns
• Story By: Greg Berlanti & Andrew Kreisberg
• Directed By: David Nutter

• Guest Starring: Robbie Amell (Ronnie Raymond), Anthony Carrigan (Kyle Nimbus aka The Mist), Patrick Sabongui (David Singh)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Michael Benyaer (Araz), Philip Cabrita (Man #1), Chris Eastman (Mall Cop), Arash Ghorbani (Raffi), Everick Golding (Corrections Officer), Natalie Goyarzu (Terrified Woman), Christoff Lundgren (Tweaker), Elizabeth McLaughlin (Theresa Howard), Gerald Paetz (Curtis), Michael Karl Richards (Paulson), Benjamin Wise (Mugger)
• Written By: Alison Schapker & Grainne Godfree
• Directed By: Jesse Warn

• Special Guest Star: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Emily Bett Rickards (Felicity Smoak), Patrick Sabongui (David Singh)
• Co-Starring: Reese Alexander (Museum Guard), Paul Belsito (Thug #2), Bruce Harwood (Dexter Myles), Sarah Hayward (Tour Guide), Robert Mann (Basil Nurblin), Chris Rosamond (Thug #1), Jesse Reid (Oswald Loomis), Hugo Steele (Security Guard #1), Lucas Wolf (Thug #3)
• Written By: Geoff Johns & Kai Yu Wu
• Directed By: Glen Winter

• Special Guest Star: Clancy Brown (General Wade Eiling)
• Guest Starring: Kelly Frye (Bette Sans Souci aka Plastique), Patrick Sabongui (David Singh)
• Co-Starring: Jan Bos (Dr. Hadley), Fulvio Cecere (Officer Vukuvich), Mike Mitchell (Security Guard)
• Written By: Aaron Helbing & Todd Helbing & Brooke Eikmeier
• Directed By: Dermott Downs

• Guest Starring: Greg Finley (Tony), Patrick Sabongui (David Singh)
• Co-Starring: Lauren Lee Denham (Stacy Conwell), Austin Dunn (Young Tony), Amina Elkatib (Young Iris), Daniel Mallinson (Officer Doyle), Travis MacDonald (Tat Man), Logan Williams (Young Barry)
• Written By: Jaime Paglia & Chris Rafferty
• Directed By: Millicent Shelton

• Guest Starring: Greg Finley (Tony Woodward), Robert Knepper (William Tockman aka Clock King), Michael Reventar (Farooq aka Blackout), Patrick Sabongui (David Singh)
• Co-Starring: Steve Baran (Swat Commander), Alex Barima (College Boy), Casey Dubois (Barista), Chantele Francis (Annoyed Customer), Jacky Lai (College Girl), Christiaan Westerveld (Mugger)
• Written By: Alison Schapker & Grainne Godfree
• Directed By: Larry Shaw

• Special Guest Stars: Stephen Amell (Oliver Queen aka The Arrow), David Ramsey (John Diggle), Emily Bett Rickards (Felicity Smoak)
• Guest Starring: Paul Anthony (Roy G. Bivolo aka Prism), Anna Hopkins (Sandra), Patrick Sabongui (David Singh), Robbie Amell (Ronnie Raymond)
• Co-Starring: Sharon Bell (Female Restaurant Patron), Roman Blomme (Street Punk #1), Trevor Carroll (Street Punk #2), Jason Day (SWAT #2), Michelle Choi-Lee (Teller), Demord Dann (Security Guard), Thabo Ketshabetswe (Painter #1), Peter New (Widgick), Gary Pettinger (Male Restaurant Patron), Devin Pihlainen (Cute Guy), Anja Savcic (Young Mother), Natalie Smith (Pretty Woman)
• Story By: Greg Berlanti & Andrew Kreisberg
• Teleplay By: Ben Sokolowski & Brooke Eikmeier
• Directed By: Glen Winter

• Guest Starring: Robbie Amell (Ronnie Raymond), Michelle Harrison (Nora Allen), Amanda Pays (Dr. Tina McGee)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Steve Baran (Task Force #1), Dean Hinchey (Decorator), James Michalopolous (Security Guard #1), David Milchard (Scientist), Logan Williams (Young Barry)
• Written By: Todd Helbing & Aaron Helbing
• Directed By: Ralph Hemecker

• Special Guest Star: Dominic Purcell (Mick Rory aka Heat Wave)
• And: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Luc Roderique (Jason Rusch), Patrick Sabongui (David Singh)
• Co-Starring: Jason Bell (Cop #2), Fulvio Cecere (Officer Vukuvich), Jane Craven (Rachel Rathaway), Graeme Doyle (Officer Gibbons), Daniel Mallinson (Cop #4), Jana Mitsoula (Cop #5), James Ralph (Osgood Rathaway), Michael Karl Richards (Cop #1), Lee Shorten (Executive Staffer)
• Written By: Kai Yu Wu & Geoff Johns
• Directed By: Nick Copus

• Guest Starring: Tom Butler (Eric Larkin), Roger Howarth (Mason Bridge), Andrew Mientus (Hartley Rathaway aka Pied Piper)
• Co-Starring: Sarwan Badesha (Cop #1), Quynh Mi (Woman)
• Written By: Alison Schapker & Brooke Eikmier
• Directed By: John F. Showalter

• Special Guest Star: Victor Garber (Dr. Martin Stein)
• Guest Starring: Malese Jow (Linda Park), Andrew Mientus (Hartley Rathaway aka Pied Piper), Britne Oldford (Shawna Baez), Micah Parker (Clay Parker)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Fraser Aitcheson (City Worker #2), Doug Chapman (City Worker #1), Will E. McDonald (Truck Guard #1), Scott McNeil (Julius), Crystal Mudry (Woman), Tristan Shire (Bartender), J. Douglas Stewart (Fire Chief), Jerry Trimble, Jr. (Marcus Stockheimer), Theo Wiersma (Karaoke Bar Patron), Mathew Yanagiya (Man)
• Written By: Aaron Helbing & Todd Helbing
• Directed By: Rob Hardy

• Special Guest Star: Victor Garber (Dr. Martin Stein), Clancy Brown (General Wade Eiling)
• Guest Starring: Robbie Amell (Ronnie Raymond), Bill Dow (Quentin Quale), Michelle Harrison (Nora Allen), Isabella Hofmann (Clarissa Stein), Malese Jow (Linda Park), Chase Masterson (Sherry)
• Co-Starring: Herbert Duncanson (Sergeant Bates), Paul Griggs (Jumper), Logan Williams (Young Barry)
• Written By: Andrew Kreisberg & Katherine Walczak
• Directed By: Glen Winter

• Special Guest Star: Victor Garber (Dr. Martin Stein), Clancy Brown (General Wade Eiling)
• Guest Starring: Robbie Amell (Ronnie Raymond), Isabella Hofmann (Clarissa Stein), Roger Howarth (Mason Bridge)
• Co-Starring: Scott Button (Barista), Herbert Duncanson (Sergeant Bates), James Yi (Lead Scientist)
• Written By: Keto Shimizu & Ben Sokolowski
• Directed By: Steve Surjik

• Guest Starring: Liam McIntyre (Mark Mardon aka The Weather Wizard), Roger Howarth (Mason Bridge), Malese Jow (Linda Park), Chad Rook (Clyde Mardon), Patrick Sabongui (David Singh)
• Co-Starring: Fred Henderson (Coroner), Naomi King (Woman), Jenn MacLean-Angus (Surgeon), Jeremy Schuetze (Rob)
• Written By: Todd Helbing & Aaron Helbing
• Directed By: Thor Freudenthal

• Special Guest Star: Dominic Purcell (Mick Rory aka Heat Wave)
• And: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Liam McIntyre (Mark Mardon aka The Weather Wizard), Nicholas Gonzalez (Dante Ramon), Roger Howarth (Mason Bridge), Malese Jow (Linda Park), Peyton List (Lisa Snart aka Golden Glider), Patrick Sabongui (David Singh)
• Co-Starring: Joey Aresco (Frank Santini), Peter Hall (Vincent Santini), Fred Henderson (Coroner), Naomi King (Woman), Charlene Luedke (Mrs. Ramon), Alan Silverman (Consiglere)
• Teleplay By: Brooke Eikmeier & Kai Yu Wu
• Story By: Grainne Godfree
• Directed By: John Behring

• Special Guest Star: Mark Hamill (James Jesse aka The Trickster)
• Guest Starring: Matt Letscher (Eobard Thawne), Bre Blair (Tess Morgan), Vito D'Ambrosio (Mayor Anthony Bellows), Devon Graye (Axel Walker aka The Trickster), Michelle Harrison (Nora Allen), Patrick Sabongui (David Singh)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Chris Cound (Father), Arlo Hajdu (Henry), Anthony Harrison (Warden Wolfe), Monice Peter (Police Officer #1), Anthony Shim (Police Officer #2)
• Written By: Andrew Kreisberg
• Directed By: Ralph Hemecker

• Special Guest Star: Emily Bett Rickards (Felicity Smoak)
• And: Brandon Routh (Ray Palmer aka The Atom)
• Guest Starring: Amanda Pays (Dr. Tina McGee)
• And: Emily Kinney (Brie Larvan)
• Co-Starring: Alicia Chowen (Student #1), Marlo Franson (Bill Carlisle), Andrew Gillingham (Crook #2), Theresa Wong (Lindsay Kang), Kasey Kieler (Thief #1), Mathieu Lardier (Maitre D'), Andrew Laurenson (Flasher), Al Miro (Thief #2), Carl Montoya (Crook #1)
• Written By: Grainne Godfree & Kai Yu Wu
• Directed By: Kevin Tancharoen

• Special Guest Star: Katie Cassidy (Laurel Lance aka Black Canary)
• And: Paul Blackthorne (Detective Quentin Lance)
• Guest Starring: Danielle Nicolet (District Attorney), Patrick Sabongui (David Singh)
• Co-Starring: Paul Almeida (Uniform Cop #1), Ray Boulay (Construction Worker), Naiah Cummins (Teller), King Lau (Hulking Man), Laiken Laverock (Little Girl), Maxine Miller (Old Woman), Atlin Vera Mitchell (Nina), Paul Moniz de Sa (Jeweler), Martin Novotny (Hannibal Bates), Marshall Virtue (TSA Agent), Barbara Wallace (Grandma Bates), Chris Webb (Trusting Man Face)
• Written By: Ray Utarnachitt & Cortney Norris
• Directed By: Wendey Stanzler

• Guest Starring: Patrick Sabongui (David Singh)
• Co-Starring: Peter Bryant (Fire Chief), Jessie Fraser (Nurse), Roger Haskett (Doctor), Martin Novotny (Hannibal Bates), Jeremy Schuetze (Rob)
• Written By: Alison Schapker & Brooke Eikmeier
• Directed By: Steve Shill

• Special Guest Star: Clancy Brown (General Wade Eiling)
• Guest Starring: Patrick Sabongui (David Singh)
• Co-Starring: Jane Hancock (Mother), Jason McKinnon (Driver), David Sobolov (Grodd)
• Written By: Grainne Godfree & Kai Yu Wu
• Directed By: Dermott Downs

• Special Guest Stars: Stephen Amell (Oliver Queen aka The Arrow), Robbie Amell (Ronnie Raymond aka Firestorm)
• And: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Liam McIntyre (Mark Mardon aka Weather Wizard), Paul Anthony (Roy G. Bivolo aka Rainbow Raider), Anthony Carrigan (Klye Nimbus aka The Mist), Doug Jones (Jake Simmons aka Deathbolt), Peyton List (Lisa Snart aka Golden Glider), Danielle Nicolet (District Attorney Cecile), Britne Oldford (Shawna Baez aka Peekaboo)
• Written By: Aaron Helbing & Todd Helbing
• Directed By: Douglas Aarniokoski

• Special Guest Star: Victor Garber (Dr. Martin Stein)
• And: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Matt Letscher (Eobard Thawne), Robbie Amell (Ronnie Raymond), Michelle Harrison (Nora Allen), Patrick Sabongui (David Singh)
• And: John Wesley Shipp (Henry Allen)
• Special Appearance By: Ciara Renee (Kendra Saunders)
• Co-Starring: Logan Williams (Young Barry)
• Teleplay By: Gabrielle Stanton & Andrew Kreisberg
• Story By: Greg Berlanti & Andrew Kreisberg
• Directed By: Dermott Downs