• Special Guest Star: Matt Letscher (Eobard Thawne aka Reverse Flash)
• Guest Starring: Alex Désert (Captain Mendez), Michelle Harrison (Nora Allen), Todd Lasance (Edward Clariss aka The Rival)
• And: John Wesley Shipp (Henry Allen)
• Co-Starring: Keri Adams (Bethany Snow), Michele De Broel (Barricade Cop), Lillian Doucet-Roche (Attractive Woman), Ian Farthing (CFO), Dimitri Tsoy (Uniformed Cop)
• Uncredited: Tobin Bell (Voice of Dr. Alchemy)
• Teleplay By: Andrew Kreisberg & Brooke Roberts
• Story By: Greg Berlanti & Andrew Kreisberg
• Directed By: Jesse Warn

• Special Appearance By: Tom Felton (Julian Albert)
• Special Guest Star: Emily Bett Rickards (Felicity Smoak)
• Guest Starring: Todd Lasance (Edward Clariss aka The Rival)
• And: John Wesley Shipp (Jay Garrick aka The Flash of Earth-3)
• Co-Starring: David Lee Forts (Patron)
• Uncredited: Tobin Bell (Voice of Dr. Alchemy)
• Written By: Aaron Helbing & Todd Helbing
• Directed By: Ralph Hemecker

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Violett Beane (Jesse Wells), Peter Flemming (John Kane), Joey King (Frankie Kane aka Magenta), Todd Lasance (Edward Clariss aka The Rival)
• Co-Starring: Kathryn Dobbs (Karen Kane), Jonathan Maniraho (Maitre D'), Bethany McNab (Employee), Zenaida Telfair (Nurse)
• Uncredited: Tobin Bell (Voice of Dr. Alchemy)
• Written By: Judalina Neira & David Kob
• Directed By: Armen V. Kevorkian

• Special Guest Star: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick), Danielle Nicolet (District Attorney Cecile), Grey Damon (Sam Scudder aka Mirror Master), Ashley Rickards (Rosalind Dillon aka Top)
• Co-Starring: Dalias Blake (Tough #2), Chad Riley (Foreman)
• Written By: Benjamin Raab & Deric A. Hughes
• Directed By: Stefan Pleszczynski

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Patrick Sabongui (Captain David Singh), Susan Walters (Dr. Tannhauser), Thomas Cadrot (Nigel)
• Co-Starring: Isaiah Lehtinen (Kid), Briana Rayner (Receptionist)
• Written By: Zack Stentz
• Directed By: C. Kim Miles

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Danielle Nicolet (DA Cecile Horton)
• Co-Starring: Adam Bergquist (Randolf Morgan), Devina Briggs (Child), Devielle Johnson (Task Force #1), Ash Lee (Stock Broker), Mike McLeod (Shade)
• Uncredited: Tobin Bell (Voice of Dr. Alchemy)
• Written By: Emily Silver & David Kob
• Directed By: JJ Makaro

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Greg Grunberg (Detective Patterson), Andre Tricoteux (Savitar)
• Co-Starring: Lisa MacFadden (Anne), Blair Penner (Craig), Taylor St. Pierre (Acolyte)
• Teleplay By: Andrew Kreisberg & Brooke Roberts
• Story By: Judalina Neira
• Directed By: Kevin Smith

• Special Guest Stars: Stephen Amell (Oliver Queen aka Green Arrow), Franz Drameh (Jefferson Jackson aka Firestorm), Victor Garber (Dr. Martin Stein aka Firestorm), Willa Holland (Thea Queen aka Speedy), Caity Lotz (Sarah Lance aka White Canary), Dominic Purcell (Mick Rory aka Heat Wave), David Ramsey (John Diggle aka Spartan), Emily Bett Rickards (Felicity Smoak), Brandon Routh (Ray Palmer aka The Atom)
• And: Melissa Benoist (Kara Danvers aka Supergirl)
• Guest Starring: Audrey Marie Anderson (Lyla Michaels), Christina Brucato (Lily Stein), Donnelly Rhodes (Glasses), Jerry Wasserman (President of the U.S.A.)
• Co-Starring: Sonia Beeksma (Reporter), Linda Ko (NSA Official)
• Teleplay By: Aaron Helbing & Todd Helbing
• Story By: Greg Berlanti & Andrew Kreisberg
• Directed By: Dermott Downs

• Special Appearance By: Tom Felton (Julian Albert aka Dr. Alchemy)
• Special Guest Star: Mark Hamill (The Trickster of Earth-3)
• Guest Starring: Nicholas Gonzalez (Dante Ramon), Danielle Nicolet (District Attorney Cecile Horton)
• And: John Wesley Shipp (Jay Garrick aka The Flash of Earth-3)
• Guest Starring: Andre Tricoteux (Savitar)
• Co-Starring: Sonia Beeksma (News Anchor), Chantal Bul Viet (Danielle)
• Uncredited: Tobin Bell (Voice of Dr. Alchemy / Savitar)
• Teleplay By: Lauren Certo
• Story By: Aaron Helbing & Todd Helbing
• Directed By: Rachel Talalay

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Jessica Camacho (Gypsy), Stephen Huszar (Jared Morillo aka Plunder)
• And: Greg Grunberg (Detective Patterson)
• Guest Starring: Andre Tricoteux (Savitar)
• Co-Starring: Sonia Beeksma (News Anchor), Jason Hunt (Father), Ava Julien (Officer Kim), Brandy Le (Aircraft Marshaler), Olena Medwid (Olga), Tatiana Moldowan (Teenage Girl)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Grainne Godfree & David Kob
• Directed By: Millicent Shelton

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Danielle Nicolet (District Attorney Cecile Horton), Jessica Camacho (Gypsy), Andrea Brooks (Eve Teschmacher)
• Co-Starring: Jason Bell (Uniformed Cop #1), Gui Fontanezzi (Arms Dealer), Rhianna Jagpal (2nd Cheerleader), Adam Kozlick (Gang Member #1), Bri Neal (Head Cheerleader), James Neate (Lazarus)
• Teleplay By: Zack Stentz
• Story By: Benjamin Raab & Deric A. Hughes
• Directed By: Harry Jierjian

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick), Danielle Nicolet (District Attorney Cecile Horton), Matthew Kevin Anderson (Clive Yorkin), Alex Désert (Julio Mendez), Riley Jade (Joanie Horton), Caitlin Stryker (Laura Stone)
• Co-Starring: Damien Revins (Stuart Holzman)
• Written By: Brooke Roberts & Judalina Neira
• Directed By: Rob Hardy

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick), Jessica Camacho (Gypsy), Keith David (Solovar), David Sobolov (Grodd)
• Co-Starring: Arpad Balogh (Robber #1)
• Teleplay By: Aaron Helbing & David Kob
• Story By: Andrew Kreisberg
• Directed By: Dermott Daniel Downs

• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick), Jessica Camacho (Gypsy), Keith David (Solovar), David Sobolov (Grodd)
• Co-Starring: Quyen Bui (Soldier), Paul Jarrett (General McNally), Sean Poague (Accelerated Man)
• Teleplay By: Benjamin Raab & Deric A. Hughes
• Story By: Todd Helbing
• Directed By: Dermott Daniel Downs

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick), Vanessa Williams (Francine West), Andre Tricoteux (Savitar)
• Co-Starring: Blair Penner (Acolyte Craig)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Andrew Kreisberg & Andrew Wilder
• Directed By: Alexandra La Roche

• Special Appearance By: Tom Felton (Julian Albert)
• Special Guest Stars: Robbie Amell (Ronnie Raymond), Rick Cosnett (Eddie Thawne)
• And: Wentworth Miller (Leonard Snart)
• Guest Starring: Violett Beane (Jesse Wells aka Jesse Quick)
• And: John Wesley Shipp (Jay Garrick aka The Flash of Earth-3)
• Guest Starring: Andre Tricoteux (Savitar)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Brooke Roberts & Judalina Neira
• Directed By: Gregory Smith

• Special Guest Stars: Melissa Benoist (Supergirl), Victor Garber (Millie's Dad), John Barrowman (Cutter Moran), David Harewood (J'onn J'onzz aka Martian Manhunter), Jeremy Jordan (Grady), Chris Wood (Mon-El / Tommy Moran)
• Guest Starring: Darren Criss (Music Meister), Michelle Harrison (Nora Allen)
• Co-Starring: Braden Chase (Goon #1), Liam Hughes (Young Barry), Gili Roskies (Patron)
• Teleplay By: Aaron Helbing & Todd Helbing
• Story By: Greg Berlanti & Andrew Kreisberg
• Directed By: Dermott Daniel Downs

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Jessica Camacho (Gypsy), David Dastmalchian (Abra Kadabra), Danielle Nicolet (District Attorney Cecile Horton)
• Co-Starring: Nickolas Baric (Security Guard #1), Bruce Crawford (Security Guard #2)
• Teleplay By: Brooke Roberts & David Kob
• Story By: Andrew Kreisberg
• Directed By: Nina Lopez-Corrado

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Grey Damon (Sam Scudder aka Mirror Master), Ashley Rickards (Rosalind Dillon aka Top), Andre Tricoteux (Savitar)
• Co-Starring: Makara Adkins (Another Woman), Kathryn Coutu (Woman), Jonathan Glasgow (Newscaster Kline), Carmela Sison (Nurse Beth)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Carina Adly MacKenzie
• Directed By: Tom Cavanagh

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Anne Dudek (Tracy Brand), Danielle Nicolet (District Attorney Cecile Horton), Andre Tricoteux (Savitar)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Bronwen Clark & Joshua V. Gilbert
• Directed By: Hanelle M. Culpepper

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Anne Dudek (Tracy Brand), Danielle Nicolet (District Attorney Cecile Horton), Richard Zeman (Lucius Coolidge aka Heat Monger), Andre Tricoteux (Savitar)
• Co-Starring: Liam Hughes (Young Barry), Sasha Rojen (Young Iris), Ken Camroux-Taylor (Judge Hankerson)
• Uncredited: Tobin Bell (Voice of Savitar)
• Written By: Judalina Neira & Lauren Certo
• Directed By: David McWhirter

• Special Guest Star: Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Audrey Marie Anderson (Lyla Michaels), Anne Dudek (Tracy Brand), Andre Tricoteux (Savitar)
• Co-Starring: Austin Eckert (ARGUS Agent #1), Larry Hoe (Government Official)
• Uncredited: Tobin Bell (Voice of Savitar)
• Teleplay By: Grainne Godfree
• Story By: Andrew Kreisberg
• Directed By: Michael A. Allowitz

• Special Appearance By: Tom Felton (Julian Albert)
• Guest Starring: Jessica Camacho (Gypsy), Anne Dudek (Tracy Brand), Michelle Harrison (Nora Allen)
• And: John Wesley Shipp (Jay Garrick aka The Flash of Earth-3)
• Featuring: Tobin Bell (The Voice of Savitar)
• Guest Starring: Andre Tricoteux (Savitar)
• Written By: Aaron Helbing & Todd Helbing
• Directed By: David McWhirter