• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Alexandra Castillo (Gloria Cruz), Giacomo Baessato (J. Edgar Hoover)
• Co-Starring: Andrew Wheeler (Sheriff Thomas Wood), Anthony F. Ingram (Pastor Hanson), Toby Marks (Woman), Vera Frederickson (Young Girl), Marc LeBlanc (G-Man), Jocelyne Loewen (Female Passerby), Ryan Irving (Teller)
• Written By: James Eagan & Ray Utarnachitt
• Directed By: Kevin Mock

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Alexandra Castillo (Gloria Cruz), Giacomo Baessato (J. Edgar Hoover)
• Co-Starring: Sean Kuling (Agent Rodgers), Arpad Balogh (Agent Donovan), Rick Dobran (Tony), Scott Button (Francis Baker, Jr.), Vladimir Raiman (Igor Lewandoski), Amber Lewis (Woman in Furs), Ken Godmere (Ticket Taker), Michael Charrois (Aristocrat), Carey Feehan (Banker), Warren Chow (Academic), Nevin Burkholder (Angry Passenger), Mary-Lou Drachenberg (Jewish Lady), Tina-Marie Springham (Rich Lady), David Beairsto (Rich Man), Jesse Peachment (The Mr.), Tavia Cervi (The Mrs.), Mike McLeod (Ticket Taker #2), Donovan Wolf (Working Class Passenger)
• Written By: Morgan Faust & Marcelena Campos Mayhorn
• Directed By: Alexandra La Roche

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Special Guest Stars: Brandon Routh (Ray Palmer aka The Atom), Victor Garber (Professor Martin Stein aka Firestorm), Franz Drameh (Jefferson "Jax" Jackson aka Firestorm), Arthur Darvill (Rip Hunter), Courtney Ford (Eleanor "Nora" Darhk), Wentworth Miller (Leonard Snart aka Captain Cold)
• Guest Starring: Raffi Barsoumian (Bishop), Falk Hentschel (Carter Hall aka Hawkman)
• Written By: Phil Klemmer & Matthew Maala
• Directed By: Caity Lotz

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Aubrey Reynolds (Maude), Giacomo Baessato (J. Edgar Hoover), Hamza Fouad (Eddie), Sage Brocklebank (Ross Bottoni)
• Co-Starring: Eva Tavares (Suzie), Michael Connor (Pianist), Malcolm Aiken (Trumpet Player), Morgan Derera (Ticket Taker), Kevin Mundy (Donny), Matteo Friend (Ricky), Neil Charlesworth (Record Executive), TJ Oberholzer (Shopkeeper), Dustin Wyatt (Butcher), Stephanie Cho (Seamstress), Amira Anderson (Maid), Nicholas Preston (Shoe Shiner), Jeremy Fleurissaint (Driver)
• Written By: Keto Shimizu & Emily Cheever
• Directed By: Kristin Windell

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Giacomo Baessato (J. Edgar Hoover), Chris Britton (Thomas Edison), Matthew Clarke (Erwin George "Cannon Ball" Baker)
• Co-Starring: Charles Siegel (Sweet Old Man), Eric Regimbald (Police Officer), Eric Gustafsson (Shady Young Man), Brian McCaig (Doctor)
• Written By: Paiman Kalayeh & Mark Bruner
• Directed By: Andrew Kasch

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Raffi Barsoumian (Bishop), Giacomo Baessato (J. Edgar Hoover)
• Co-Starring: Andre Roshkov (Russian Senior Officer), Isaac Andrew (Soldier)
• Written By: Ray Utarnachitt & Mercedes Valle
• Directed By: Nico Sachse

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Raffi Barsoumian (Bishop), Kimleigh Smith (Female Worker), Jason Gray-Stanford (Staples)
• Co-Starring: Michelle Goyns (Abby), Michael P. Northey (George), Clay St. Thomas (Colonel Dawson), Christine Willes (Eleanor Roosevelt), Heidi Bauman (Friendly Rosie), Dario Giordani (Military Police), Ashleica Edmond (Rosie #1), Claire Traille (Rosie #2), Dan Swain (TIME Reporter)
• Written By: Morgan Faust & Leah Poulliot
• Directed By: Glen Winter

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Ego Mikitas (General Kalashnik), Stefanie von Pfetten (Dr. Irina Petrov)
• Co-Starring: Robert Hayley (Scared Soldier), Andrei Kovski (Irina's Contact), Atlee Smallman (Small Kid), Adam Gouti (Big Kid)
• Written By: Phil Klemmer & Marcelena Campos Mayhorn
• Directed By: David Geddes

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Giles Panton (Harris Ledes)
• Co-Starring: Dylan Archambault (Demon Receptionist), Anna Barker (Camera Person 1)
• Written By: James Eagan & Emily Cheever
• Directed By: Eric Dean Seaton

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Timothy Webber (The Proprietor)
• Special Appearance By: Matt Letscher (Eobard Thawne)
• Co-Starring: Rady Panov (Gavrilo Princip), Trezzo Mahoro (Hotshot #1), Anthony Timpano (Hotshot #2), Chris Olson (Hotshot #3), Marc Gaudet (Archduke Franz Ferdinand), Keara Barnes (Sophie, Duchess of Hohenberg), Dan Ginnane (Time Traveller), Seth Marks (Patron #1), Gurb Johal (Patron #2), Tyson Arner (First Finger), Mark Krysko (Second Finger)
• Written By: Matthew Maala & Paiman Kalayeh
• Directed By: Maisie Richardson-Sellers

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Special Guest Star: Matt Letscher (Eobard Thawne)
• Guest Starring: Timothy Webber (The Proprietor)
• Co-Starring: Rady Panov (Gavrilo Princip), Trezzo Mahoro (Hotshot #1), Anthony Timpano (Hotshot #2), Chris Olson (Hotshot #3), Timothy Selby (Young Sarajevan), Erin Mudry (Sarajevan With Tablet)
• Written By: Mark Bruner & Mercedes Valle
• Directed By: Jes Macallan

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Guest Starring: Tom Forbes (Alun)
• Co-Starring: Jessica Halliburton (Blonde Girl #1), Lily Yawson (Interviewer)
• Written By: Morgan Faust & Leah Poulliot
• Directed By: Sudz Sutherland

• Special Appearance By: Matt Ryan (Dr. Gwyn Davies)
• Special Guest Star: Donald Faison (Booster Gold)
• Guest Starring: Tom Forbes (Alun)
• Co-Starring: Dwayne Rhodes (Grizzled Soldier), Arvind Johal (Time Policeman), Peter Grant (Caveman #1), James R. Cowley (Caveman #2), Conor Stinson O'Gorman (Reece), Joel Eskildsen (Soldier #1), Luke Kuzyk (Soldier #2), Michael Charrois (Prussian General)
• Written By: Phil Klemmer & Keto Shimizu
• Directed By: Kevin Mock