The Flash has utilized the majority of Barry Allen’s comic book villains, but there are also some who don't come from the pages of DC. The first three seasons had the Scarlet Speedster face three of the more famous Flash villains, with Reverse-Flash and reimagined versions of Zoom as well as Savitar. As the speedster formula began to get repetitive to viewers as well as even the writers, The Flash season 4 broke out of that structure by bringing Clifford DeVoe a.k.a. the Thinker into the Arrowverse as the main antagonist for that year. Pitched as a battle between the fastest man alive versus the fastest mind alive, Team Flash had to rely on beyond Barry’s speed to stop the Thinker.

When it comes to recurring villains, almost all of his DC Comics Rogues Gallery have made it into the series in one way or another. From Captain Cold, Heatwave, Mirror Master, Weather Wizard, both of the Tricksters, Golden Glider, Abra Kadabra, to Rainbow Raider, The Flash hasn’t been shy from using the greater mythology that the series is adapting. The sixth season became a breath of fresh air for the villain structure by having two separate main foes within the two respective halves of the season. Leading up to Crisis on Infinite Earths, Bloodwork served as a formidable foe for the first 8 episodes before Barry and his team headed into the biggest crossover in the entire Arrowverse.

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The Flash’s second half of season 6 then introduced a gender-bent version of the second Mirror Master in the form of Eva McCulloch. Throughout the second graphic novel (as the showrunner Eric Wallace refers to the separate halves as), Eva became one of the more complex antagonists in the series with the Mirrorverse getting a larger role within the Arrowverse. However, as many DC villains that The Flash has used over the years, the CW drama has had their fair shares of creating original characters to serve as either main or recurring foes against Team Flash.

Marlize DeVoe (The Mechanic)

The Flash Season 4 Therefore I Am Clifford and Marlize Devoe sit side by side

The Flash season 4 had The Thinker work with his better half as his wife Marlize DeVoe was part of helping Clifford trying to accomplish his plan in rebooting the human race intellectually. Marlize’s villain-code name ended up being The Mechanic and while it’s the same name as a minor DC character who appeared in one issue of Knight & Squire, it became clear that The Flash was utilizing that title in a different capacity. Throughout the season, Marlize and Clifford were lined up as the opposite to Barry and Iris with one couple being on the dark side and the other one standing in the light.

Marlize became a solid counterpart to Iris, as The Flash played with their wives to their respective husbands as one was helping her man save the world while the other one was trying to manipulate it. However, season 4 began showing the cruelty and sinister side of Clifford as it pertained to their marriage. Throughout the later episodes, it was revealed how Clifford had not only manipulated their marriage prior to his war with Team Flash but what he was doing to Marlize to make her comply with his will. Towards the end of the season, Marlize broke out of his control and turned on him as she aided Team Flash in stopping Clifford once and for all.

Orlin Dwyer (Cicada I)

The Flash Cicada 1

While there is a significant Flash villain in the comics that goes by Cicada, the TV series only used the name as their version of the DC foe bared no resemblance to the comic counterpart. The fifth season focused heavily on legacy and family as Barry and Iris were visited by their daughter Nora from the future. Even though David Hersch, the real Cicada, appeared in the series, his role was changed due to Nora’s time travel actions, which set up Orlin Dwyer as the new Cicada of this timeline. While Orlin had a lightning bolt dagger, a weapon that Cicada in the comics uses, it had a very different function compared to the source material.

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The Arrowverse depiction of Cicada had him running around killing metahumans as Orlin had grown a hatred towards them after the events of the season 4 finale. The night Barry and Nora destroyed the STAR Labs satellite that the Thinker, both Grace, and Orlin ended up being hit by the debris from the satellite that had been infused with dark matter. While Grace ended up in a coma, Orlin was hit in the chest with a piece that was shaped like a lightning bolt which became his weapon against metahumans. Somehow, the dagger and Orlin were connected as it began Orlin’s killing spree as Cicada, and because of its powers, it became challenging for Team Flash to stop him.

While his accident had also left him with a few more abilities, the lightning bolt dagger was the core element that made him powerful as Cicada as it could disable any meta-power. Eventually, Barry managed to get through to Orlin and convinced him to take the team’s metahuman cure that made him a normal human again and broke the connection with the dagger. However, Orlin wasn’t the only one to carry the Cicada title as a new and surprising player emerged towards the end of the season.

Grace Gibbons (Cicada II)

The Flash Season 5 Failure is an Orphan Future Cicada Unmasked

Despite having been comatose for most of the season, Grace actually ends up getting to play a bigger role within The Flash season 5, but with a twist. When Orlin was visiting Grace and spewing his hatred for metahumans, Grace was actually hearing all of it as her mind got affected by his viewpoints. After Orlin takes the cure, a new Cicada shows up and it’s none other than Grace from the future as she stops the team from using the cure on present-Grace. Due to Grace’s injury when she got hit by the dark matter debris, it was damaging her brain more than the team had initially realized.

The way the team stopped her was a combination of destroying the dagger with the mirror-gun as well as getting young Grace to take the cure so that her future version would cease to exist. While they succeeded, it was a convoluted conclusion to a lackluster adaptation of Cicada whose comic counterpart has more depth and complexity than Orlin and Grace combined. The Flash’s version of Cicada was the last time they had one villain (even if there were two who shared the name) be the main antagonist for an entire season.

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Millie Rawlins (Sunshine)

The Flash Villains Sunshine

Season 6 introduced the villainous organization Black Hole into the Arrowverse as it comes from some of the recent The Flash comics. Throughout the organization’s time on the show, several foes were part of it from Doctor Light, Esperanza Garcia to the show’s latest new original villain Millie Rawlins a.k.a. Sunshine. While she has only appeared in three episodes thus far, she was one of the frequently used agents of Black Hole for Team Flash to deal with. Her heliokinesis is enabled by sunlight as Millie is able to use her powers to both control and bend sunlight to her advantage. From being able to use it as a weapon, teleporting, to turning invisible, Sunshine was one of the more powerful metahumans that The Flash created, while also making her an original villain.

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