Season 6 (The Flash)

"The reason you beat Zoom, Godspeed, Thawne, is because speed isn't what drives you, it's love. That's your true force and there is nothing artificial about that."

- Caitlin Snow to Barry Allen

The sixth season of ​​​​​​ premiered on October 8, 2019, on The CW and concluded on May 12, 2020. It was originally going to consist of 22 episodes. However, only 20 were produced due to production shutting down indefinitely on March 13, 2020, due to the COVID-19 pandemic. On April 20, 2020, it was revealed that only 19 out of the produced 20 episodes would be aired.

Beginning with this season, seasons were broken up into story arcs which were called "Graphic Novels". The first half of the season was called "Blood and Truth" and the second half was not given a specific title.

Main cast

 * Grant Gustin as Barry Allen/The Flash/Dark Flash
 * Candice Patton as Iris West-Allen and "Iris West-Allen"
 * T.J.Wiliams as Tyler Jackson/Mighty-Man
 * Danielle Panabaker as Dr. Caitlin Snow/Frost
 * Carlos Valdes as Cisco Ramon/Vibe and Cisco Ramon/Echo
 * Hartley Sawyer as Ralph Dibny/Elongated Man
 * Danielle Nicolet as Defense Attorney Cecile Horton
 * LaMonica Garrett as Mar Novu/The Monitor and Mobius/Anti-Monitor (voice)
 * Efrat Dor as Dr. Eva McCulloch
 * Tom Cavanagh as Dr. Harrison Nash Wells/Pariah, Professor Eobard Thawne/Reverse-Flash, Dr. Harrison "Harry" Wells, and Harrison Sherloque Wells
 * Jesse L. Martin as Captain Joe West

Recurring cast

 * Sendhil Ramamurthy as Dr. Ramsey Rosso/Bloodwork
 * Victoria Park as Kamilla Hwang and "Kamilla Hwang"
 * Brandon McKnight as Chester P. Runk
 * Ryan Handley as "Godspeed" and "Godspeed"
 * Jessica Parker Kennedy as Nora West-Allen (archive footage)
 * John Wesley Shipp as Dr. Jay Garrick and Barry Allen/The Flash
 * Michelle Harrison as Dr. Joan Williams and Nora Allen
 * Kayla Compton as Allegra Garcia and Maya
 * Alexa Barajas as Esperanza Garcia/Ultraviolet
 * Shawn Stewart as Mitch Romero
 * Mark Sweatman as Matthew Norvock
 * Meera Simhan as Rachel Rosso
 * Tess Atkins as Natalie
 * Rebecca Roberts as January Galore
 * Eric Nenninger as Joseph Carver
 * Emmie Nagata as Dr. Kimiyo Hoshi/Dr. Light
 * Andrew J. Hampton as Maurice
 * Stephanie Izsak as Officer Daisy Korber
 * Natalie Dreyfuss as Sue Dearbon
 * Andy Mientus as Hartley Rathaway/Pied Piper
 * Patrick Sabongui as Chief David Singh and "David Singh"
 * Natalie Sharp as Millie Rawlins/Sunshine

Production

 * Executive producer Eric Wallace took over as the sole showrunner this season due to Todd Helbing stepping down from the position at the end of last season to focus on the development of.
 * On March 13, 2020, it was reported that the production of the season had been shut down until further notice due to the COVID-19 pandemic. As a result, only 20 out of the planned 22 episodes were produced.
 * On March 26, 2020, it was reported that the season would go on hiatus after with the hope that the final 2 episodes would be produced and aired later in 2020.
 * On April 20, 2020, Grant Gustin revealed that the season's new finale would be and that it set up a different cliffhanger for next season than originally planned.
 * On May 13, 2020, showrunner Eric Wallace revealed that the last three episodes of this season (episodes 20, 21, and 22), that weren't produced and aired due to the COVID-19 pandemic, will become the first three episodes of next season.

Trivia

 * was only credited for his respective episode appearances.
 * joined the main cast in and was credited from that episode onwards.
 * This was the first season of :
 * To not feature in every episode due to her pregnancy.
 * To not feature Iris West-Allen in every episode.
 * To not have the word "Rogue" in an episode title.
 * To have less than 20 episodes.
 * To not have an introduction at the beginning of any episode.
 * To have a main cast member absent in the season finale.
 * To not have a main antagonist presumed killed or otherwise defeated.
 * Since Season 1 to not feature time remnants in any way.
 * This was the shortest season of The Flash with a total of 19 episodes.
 * The original season finale, episode 22, would've had a "big Thawne cliffhanger".
 * Just like last season, before this season started, Wally West was confirmed to appear in multiple episodes. However, he only appeared in.
 * This was the last season of The Flash to feature as a series regular due to him being fired prior to the start of production on the next season.