What follows is a list of characters that appear in The Flash (1990). This universe is briefly featured in the lead up to 2018's Elseworlds, as the Arrowverse's "Earth-90". For any characters from Earth-90 seen in other media, see this page.
BEWARE OF UNMARKED SPOILERS!
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Main Characters
Barry Allen
Bartholomew "Barry" Allen / The Flash
Click here to see his Flash Costume from Elseworlds
Species: Metahuman
Played By: John Wesley Shipp
Known Aliases: The Flash, "Professor Zoom"
Appearances: The Flash | Supergirl | The Flash (2014) | Arrow | Elseworlds note | Crisis on Infinite Earths note
A police forensic scientist that is struck by lightning while working with chemicals on a stormy night. He is endowed with the ability of incredible speed which he uses to battle a menacing gang as a superhero. He later becomes a shadowy superhero to Central City, but a symbol of hope for its citizens.
- Adaptation Dye-Job: Barry Allen is blond in the comics, but here his hair is brown.
- Advertised Extra: Downplayed, in Elseworlds he ultimately just serves to deliver some exposition about the Monitor, confront him with the others in the second hour, and then be transported elsewhere against his will.
- Alternate Self: He has seven: two on Earth-Prime as himself and his father; on the post-Crisis Earth-1 as himself; he had one on the pre-Crisis Earth-2 as himself while on the post-Crisis version he exists as Jay Garrick; on Earth-3 again as Jay Garrick; and finally he has one on Earth-66 as himself.
- Alternate Timeline: His two namesakes in The Multiverse are considerably younger than Tina, Julio, Bellows, and Trickster's counterparts.
- Amicable Exes: With Iris West, before she was put on a Long Bus Trip, that is...
- Back for the Dead: Comes back nearly twenty eight years after his show's cancellation and disappears again for a year, only to perform a Heroic Sacrifice once he comes back.
- Badass Bookworm: Barry is very well-read and intelligent while also being the fastest thing alive.
- Badass in Distress: After Mar Novu sends him to the Netherverse, he is kidnapped by Mobius and forced to run over a treadmill to power an antimatter cannon that destroys alternate worlds.
- Belligerent Sexual Tension: With Tina McGee.
- Beware the Nice Ones: He's a friendly enough guy, but pissing him off probably isn't a good idea. And if you try to hurt the people he cares about, he won't let you off the hook with a warning slip.
- Big Eater: His powers drain his energy a lot faster, and his body is constantly demanding more fuel to be put in its place. Thus, Barry goes through a fridge's worth of food in little time.
- Big Little Brother: He is taller (6'1) than the similarly tall (5'11) Jay, and is certainly more muscular.
- The Bus Came Back: After a 28 year absence since his show's premature cancellation, he comes back in the 2018 Arrowverse crossover, Elseworlds.
- Composite Character:
- Barry's large appetite and friendship with Tina McGee are all taken from Wally West's run as the Flash; Barry can only ones as fast as the speed as sound, which was Wally's limit in the comics at the time as well. The costume is based on Wally's subtly different one as well.
- There are some elements of The Reverse Flash/ Professor Zoom within Barry too, such as the fact that his clone (with his speed-based powers) ended up being a Villain of the Week, and he also went undercover as Professor Zoom to catch another villain.
- Cool Uncle: He is very fond of and is close to the children of his older brother Jay.
- Character Aged with the Actor: He returns to the Arrowverse series as an Old Superhero due to the time that passed since John Wesley Shipp interpreted this incarnation of Barry Allen.
- Chronic Hero Syndrome: A prime example. It's his main beef with Tina too.
- Dead Alternate Counterpart: For both Jay Garrick from Arrowverse Earth-3 (physically) and Earth-1 Barry Allen (name and background wise), following his Heroic Sacrifice.
- Deadpan Snarker: Does this often, both in and out of costume.Officer: Why the hell are you dressed like that?The Flash: Because I happen to like the color red?
- The Determinator: He does not take the fall of Earth-90 lying down. After the Monitor destroys it, he devotes all of his strength into breaching into Earth-1 so he can inform the heroes of their situation and even charges straight for the Monitor himself... for all the good it did him.
- Evil Is Hammy: John Wesley Shipp is evidently having a blast playing a brainwashed Flash in "The Trial of the Trickster".
- Face Death with Dignity: He literally ran to his death without any signs of hesitation.
- Failure Hero: He couldn't save the Monitor from slaughtering his Earth, nor save his fellow heroes.
- For Want of a Nail:
- For some reason, his physical counterparts on both Earth-1 and pre-Crisis Earth-2 are his father, while his physical counterpart on Earth-3 and the post-Crisis Earth-2 is his brother Jay.
- He's the only Barry Allen to be the Flash and who's parents are still together and alive.
- He's the only Barry Allen to have a sibling, while all his counterparts were an only child though his Earth-Prime counterpart was raised along with Iris West by her father.
- Freak Lab Accident: How he became The Flash.
- Friend to All Children: In the seventh episode "Child's Play", Barry goes out his way to protect two orphaned kids from a drug lord. And later in "Be My Baby" he shelters a woman and her baby who are on the run from her selective breeding manipulative ex-husband.
- Happily Married: He tells Earth-1 Barry that he and Tina got married. It is strongly suggested it was a loving marriage due to him doing parallels between Earth-1 Barry and Iris' marriage and his marriage to Tina and remebering Tina telling him that she trusts him.
- The Hero: Of the series. The show is named after him!
- The Hero Dies: He hijacks Earth-1 Barry Allen's Heroic Sacrifice to save The Multiverse during Crisis on Infinite Earths.
- Heroes Love Dogs: Has a dog named Earl.
- Heroic Build: He packs a considerable amount of muscle.
- Heroic Sacrifice: Sacrifices himself in the Arrowverse crossover event Crisis on Infinite Earths to stop the Anti-Monitor's multiverse-destroying device.
- Hero with Bad Publicity: Sometimes, sometimes not. But particularly in the episode "Flash Forward" where Barry's reputation gets smashed by an insensitive reporter. It's so insulting that Barry decides to quit superheroics right then and there.
- Heterosexual Life-Partners: With Julio Mendez since (or possibly earlier) high school.
- Hot-Blooded: When he's angry he tends to make clouded decisions. Best shown in Elseworlds where he impulsively charges straight for the Monitor ... and ends up in a portal for this troubles.
- Hunk: Chiseled features and such.
- I Just Want to Be Normal: Feel this way in the pilot episode, but gets over it.
- Identical Stranger: Earth-1 Barry compares him with his late father Henry.
- Improv Fu: Seems to prefer this more than hand-to-hand combat, which makes sense, since no one can usually lay a hand on him. He even takes out a group of drug dealers by playing an electric guitar at super-accelerated frequencies.
- Insistent Terminology: Barry was considered an "enhanced human," rather than the modern "meta-human."
- The Lab Rat: His job at the Central City Police Department.
- Lantern Jaw of Justice: His jaw is really wide, befitting a superhero.
- Lightning Bruiser: And how. Villains and petty crooks alike tend to not know what hit them.
- Motor Mouth: His mouth runs faster than he does.
- Mr. Fanservice: He occasionally has Shirtless Scenes.
- Nice Guy: He's generally just a thoughtful and sweet dude.
- No Body Left Behind: He ran to reverse the antimatter cannon which causes his entire body to be disintegrated. In the end, all that was left is his Chest Insignia.
- Old Superhero: He's still an active superhero twenty eight years after gaining his powers.
- Passing the Torch: In a sense, he tells the other Barry to keep riding the lightning before sacrificing his life to save him and the multiverse.
- Platonic Life-Partners: Subverted with Dr. Tina McGee; by the end of the series, it's all but established that the two of them had a very strong bond, but though Barry frequently daydreamed of them getting a Relationship Upgrade, Tina remained afraid since her husband died and she didn't want a repeat. They did indeed become a couple, eventually getting married.
- Power Parasite: He steals Earth-1 Barry's speed to be faster and to ensure that it is him who does the sacrifice.
- Pungeon Master: As The Flash.
- Red Is Heroic: His costume is bright crimson.
- Related in the Adaptation: His older brother Jay is a re-imagined Jay Garrick, the first Flash who is not related by blood to Barry in the comics. Likewise, it's revealed that he ultimately marries Tina McGee.
- Remake Cameo: A literal example, since a still from this show is glimpsed by the Barry of the 2014 series when he's traveling to Earth-2. (His chest lightning orientation is the same as the Reverse-Flash's unlike in his show, but this is likely a goof due to the still being flipped).
- Retcon: In his series, he didn't use the Speed Force, but his integration into the Arrowverse changes that.
- Science Hero: When he couldn't handle criminals with his speed alone, he and Tina often devised strategies and solutions through science.
- Sole Survivor: Of the Earth-90 superheroes after the Monitor laid waste to it. All the other heroes including the Ray, Green Arrow, and Hawkgirl are dead.
- Super Speed: His main and most basic ability.
- Tall, Dark, and Handsome: He stands 6'1.
- Together in Death: He reunites with his late wife Tina when he gives his life up to negate the antimatter cannon's destruction mechanism.
- Two First Names: Per the DC Comics norm.
- Uncertain Doom: At Earth-1, he tries to run after the Monitor, but the latter sends him into a portal, which left his fate unknown until he was revealed to return for Crisis.
- The Unfavorite: His dad always gave him a hard time for being a forensic scientist instead of a cop like his older brother, Jay.
- Uniqueness Decay: Started off as the only hero of Earth-90. In the Time Skip between the show's cancellation and Elseworlds, dozens of heroes show up.
- Will They or Won't They?: Again, with Tina McGee.
- What Happened to the Mouse?: It's implied the Monitor sends him back to Earth-90, but it's not entirely confirmed. His fate is eventually revealed in Crisis on Infinite Earths: the Anti-Monitor captured him and is using him to power a multiverse-eradicating machine.
- You Fight Like a Cow: Loves mixing this with puns when facing the villains.
Dr. Tina McGee-Allen
Christina "Tina" McGee-Allen
Species: Human
Played By: Amanda Pays
Appearances: The Flash | Crisis on Infinite Earths: Hour Three note
A S.T.A.R. Labs scientist who helps Barry. It's later revealed during Crisis on Infinite Earths that they were married prior to the destruction of Earth-90.
- Adaptation Dye-Job: Tina had black hair in the comics, but has brown hair here.
- Alternate Self: Has one on Earth-Prime.
- Betty and Veronica: The Betty to Iris West's Veronica, due to being the more modest one.
- Bus Crash: Barry speaks about her using past tense during Crisis on Infinite Earths, effectively confirming she died during the events leading up to Elseworlds (2018), if not when Earth-90 was destroyed by antimatter.
- Character Focus: During "Tina, Is That You?"
- Dead Alternate Counterpart: She died earlier than Earth-1 Tina.
- Deadpan Snarker: Sometimes, towards Barry, whose bullheaded penchant for sacrificial heroism often clashes with her safer, scientific by-the-book methodology.
- Evil Is Petty: During her stint as a leader of an all-girl gang. Verbally abusing a helpful nurse was quite unnecessary.
- Freak Lab Accident: Was the victim of one that switched her from good to Brainwashed and Crazy. Her husband was also killed by one.
- I Am Very British: Becomes a point of contention between Tina and a nurse.
- Killed Offscreen: Was mentioned in the past tense during Crisis Part 3, suggesting she was killed either when the Monitor devastated Earth-90 or the Anti-Monitor wiped it from existence.
- Mission Control: Usually acts as one for Barry, helping out on his cases and patching him up from S.T.A.R. Labs whenever he gets injured.
- Nice Girl: Tina is very sweet, helpful, and polite.
- Platonic Life-Partners: Subverted with Barry. While they tick all the boxes of being platonic life partners, they infrequently imply that they want a Relationship Upgrade, but are too scared to do so. They eventually enter into a loving marriage.
- Promoted to Love Interest: Progressively after Iris was Put on a Bus.
- Related in the Adaptation: She ultimately marries Barry in this incarnation.
- Relationship Upgrade: Her and Barry do indeed get together after their series ended.
- Second Love: For Barry, with Iris being his first girlfriend. Likewise, Barry is also her second husband.
Julio Mendez
Julio Mendez
Species: Human
Played By: Alex Désert
Appearances: The Flash
Barry's friend and co-worker.
- Canon Foreigner: He's exclusively made for the show.
- Nice Guy: He's affable and kind.
- Secret Secret-Keeper: Implied to be one to Barry, and he was even about to confront Barry about his double life in "Shroud of Death" before an unconvincingly sudden appearance by the Flash dissuades him from confronting Barry. Outright stated in "Flash Forward" that he suspected Barry was the Flash shortly after Barry gained the super speed powers.
The Allen Family
Henry Allen
Henry Allen
Species: Human
Played By: M. Emmet Walsh
Appearances: The Flash
Barry and Jay's father and a former cop.
- Adaptational Jerkass: Unlike many versions of the character, he is portrayed as kind of a douche towards Barry.
- Adaptational Job Change: In the comics, he's a doctor.
- Alternate Self: On Earth-Prime where he looks like his son, the post-Crisis Earth-1 and the pre-Crisis Earth-2.
- For Want of a Nail: For some reason, his counterparts on both Earths 1 and 2 physically resemble his son Barry instead of him.
- Generation Xerox: His sons joined the police force to follow his footsteps.
- Glory Days: He loves to relieve his days as a cop. In fact, one reason he favors Jay over Barry is because the former followed his footsteps as a patrol cop.
- Happily Married: To Nora.
- Innocently Insensitive: He has no idea that he can be a douche to his younger son at times.
- Jerk with a Heart of Gold: He can be a douche to Barry at times, but his love for him is unquestionable.
- Outliving One's Offspring: After Jay's death.
- Parental Favoritism: Blatantly favors Jay over Barry.
- Rated M for Manly: The reason for his favoritism towards Jay is because he's a former patrol cop like him, as he doesn't view forensic scientists like Barry as "real" police men/women.
- Related in the Adaptation: His eldest son Jay is a re-imagined Jay Garrick, the first Flash who is not related by blood to Barry in the comics. Likewise, it's revealed that Barry ultimately marries Tina McGee, making her Henry's daughter-in-law in this incarnation.
- Two First Names: Per the DC Comics norm, Henry and Allen in this case.
Nora Allen
Nora Allen
Species: Human
Played By: Priscilla Pointer
Appearances: The Flash
Barry and Jay's mother. She volunteers at a shelter for single mothers.
- Adaptation Dye-Job: Like Barry, she's a blonde in the comics and most mediabut a brunette here. She won't be the last.
- Alternate Self: On Earth-Prime, the post-Crisis Earth-1 and the pre-Crisis Earth-2.
- For Want of a Nail: For some reason, her counterparts on both Earths 1 and 2 are played by Michelle Harrison instead of Priscilla Pointer.
- Happily Married: To Henry.
- Nice Girl: Unlike her husband, she doesn't show favoritism over her sons and love them equally.
- Outliving One's Offspring: After Jay's death.
- Related in the Adaptation: Her eldest son Jay is a re-imagined Jay Garrick, the first Flash who is not related by blood to Barry in the comics. Likewise, it's revealed that Barry ultimately marries Tina McGee, making her Nora's daughter-in-law in this incarnation.
- Team Mom: Not only is she this to the Allen household but to her work as well, as she volunteers at a shelter for single mothers.
- Two First Names: Per the DC Comics norm, Nora and Allen in this case.
Jay Allen
Jay Allen
Species: Human
Played By: Tim Thomerson
Appearances: The Flash
Barry's older brother and a patrol cop. He was killed in the line of duty by his former partner Nicholas pike.
- Adaptational Name Change: He's this show's version of Jay Garrick.
- Badass Normal: He's a seasoned police officer who took down several criminals in his career.
- Big Brother Instinct: Is aware that Barry is being snubbed by their father because of him, so he always makes sure that Barry knows someone appreciates him and doesn't let him get affected negatively by their father's unappreciative attitude.
- Big Brother Worship: Barry loves Jay dearly despite being negatively compared to him by their father for most of their lives.
- Dead Alternate Counterpart: For Jay Garrick from Arrowverse Earth-3.
- Death by Adaptation: He was killed by Pike to give Barry a Death by Origin Story. In the comics, Jay Garrick remains well despite Barry becoming The Flash.
- Death by Origin Story: His death is what pushed Barry to become The Flash.
- Nice Guy: He always looks out for Barry (see above).
- Two First Names: Per the DC Comics norm, Jay and Allen in this case.
Central City Police Department
Anthony Bellows
Anthony Bellows
Species: Human
Played By: Vito D Ambrosio
Appearances: The Flash
A Central City beat cop and Murphy's partner.
Michael Francis Murphy
Michael Francis Murphy
Species: Human
Played By: Bliff Manard
Appearances: The Flash
A Central City beat cop and Bellow's partner.
Friends
Iris West
Iris West
Species: Human
Played By: Paula Marshall
Appearances: The Flash
- Adaptation Dye-Job: She's a redhead in the comics and most media. Here, she has raven hair.
- Adaptational Job Change: Journalist in the comics, graphic artist here.
- Advertised Extra: She only appeared on the pilot, but she's included in the DVD releases for the show.
- Betty and Veronica: The Veronica to Tina McGee's Betty, due to being the more sultry one.
- Career Versus Man: Implied. When Barry tried proposing to her, she hesitantly responded that he's moving too fast.
- Demoted to Extra: She's Barry's most prominent Love Interest in the comics and most media. Here, she was Dropped After the Pilot and never returns.
- Dropped After the Pilot: Leaves in a Long Bus Trip after the pilot episode.
- The Fashionista: Is constantly wearing glamorous clothes.
- For Want of a Nail: For some reason, her counterparts on both Earths 1 and 2 are played by Candice Patton instead of Paula Marshall. Furthermore, this Iris never marries with Barry.
- Unrelated in the Adaptation: The only known version of Iris West to not marry Barry Allen, though they did have a relationship.
Alpha
Alpha-1
Species: Android
Played By: Claire Stansfield
Appearances: The Flash
An android who looks like a regular human woman. She's on the run from the government to avoid being used as a weapon.
- Androids and Detectives: A one-episode variation where she's the android to Barry's Detective.
- Artificial Human: One designed to kill other humans. Fortunately, she doesn't what that to happen.
- Benevolent A.I.: Enjoys helping others when she has time to.
- The Computer Is a Cheating Bastard: A rare non-video game example where she can use her X-Ray Vision to win every game of poker.
- Theme Naming: The Greek alphabet. She's the "Alpha" android (first), followed by the "Omega" (third).
- Killer Robot: Defied by Alpha herself, who doesn't want to be a tool for violence.
- MacGuffin Super-Person: The government only wants her to use as a weapon to kill enemies with while The Flash and Alpha attempt to avert this trope and give her a normal life.
- Ridiculously Human Robots: Resembles an ordinary human female, and Fosnight is taken by surprise once he finds out she isn't.
- What Measure Is a Non-Human?: Despite being a robot, Barry and Tina feel compelled to help her, since recapture by the government means she'll become a mindless killing machine through reprogramming.
Central City Media
Joe Kline
Joe Kline
Species: Human
Played By: Richard Belzer
Appearances: The Flash
A WCCN TV news reporter, known as the "Voice of the City". Kline often does tabloid-style news stories about the Flash and his exploits.
- Catchphrase: Calling people "babe", often to their bewilderment. Lampshaded by the Trickster when he impersonates Joe.
Linda Park
Linda Park
Species: Human
Played By: Mariko Tse
Appearances: The Flash
A Central City news reporter, asking the Central City police department about their response in dealing with all the gang attacks in the city.
- Age Lift: She's visibly older than Barry, whereas she's supposed to be a contemporary and Love Interest of Barry's successor, Wally West.
- Demoted to Extra: In the comics she's the main Love Interest of Wally West, Barry's successor as The Flash. The show reduced her as an Easter Egg character.
- For Want of a Nail: For some reason, her counterparts on both Earths 1 and 2 are played by Malese Jow instead of Mariko Tse, with the former being originally played by Olivia Cheng.
Other Superheroes
Nightshade
Dr. Desmond Powell / Nightshade
Species: Human
Played By: Jason Bernard
Known Aliases: Nightshade
Appearances: The Flash
A retired hero who now practices medicine.
- Cool Old Guy: A Nice Guy who can still beat up outlaws half his age.
- Expy: For DC Comic's original Sandman. They have the same costume and similar abilities and weaponry. The presumed reason why that wasn't his alias in this series is to avoid confusion with the then-new Neil Gaiman-created comic book character of the same name that was released the previous year. He also shares the name of the super-powered anti-heroine (Eve Eden).
- Hero of Another Story: Has an entire lair filled with memorabilia that he collected from his own Rogues Gallery during his time as a hero in Central City.
- Retired Badass: Retired shortly after The Ghost's original presumed death, and wore his old costume again 35 years later, when the Ghost reappears.
- The Un-Reveal: He's not interested in finding out who The Flash is when The Flash is about to take off his mask. note
Criminals
Pike
Nicholas Pike
Species: Human
Played By: Michael Nader
Appearances: The Flash
A former cop and partner of Jay Allen. He now leads a gang of bikers.
- Arch-Enemy: He considers Jay Allen as this. After he kills him, Barry considers Pike this.
- Bad Boss: Had one of his men killed when he tries to leave.
- Badass Biker: A former patrol cop and now leads a gang of bikers.
- The Bus Came Back: Returns halfway though the series.
- Canon Foreigner: Apparently has no comic counterpart.
- Corrupt Cop: How he is before Jay exposed him.
- Dystopia: What he wants to happen to Central City.
- Evil Former Friend: For Jay Allen.
- A Father to His Men: He acts as a father figure to his gang at least initially. It's ultimately subverted as he doesn't have an issue with ditching them to save his own hide.
- From Nobody to Nightmare: From a police officer to mayor in the Bad Future.
- Good Scars, Evil Scars: Has a facial scar at the left side of his face.
- The Leader: Of the bikers gang of Central City.
- Mayor Pain: In "Flash Forward".
- Rank Scales with Asskicking: Even as the head of the city, he is still able to dish out punishment.
- Sleeves Are for Wimps: He normally wear tanktops.
- Smug Snake: He's a little too full of himself for his own good, to the point he'll underestimate who he's going up against to his downfall.
- Starter Villain: The very first major villain in the series.
- Token Motivational Nemesis: Him killing Jay is what led Barry to become the Flash.
- Ultimate Authority Mayor: In "Flash Forward". Why the government didn't intervene in the 10 years he was in power is anyone's guess.
The Ghost
Russell / The Ghost
Species: Enhanced Human
Played By: Anthony Starke
Known Aliases: The Ghost
Appearances: The Flash
A hacker from the mid-1950's, who thawed in the early 90s, and is an expert in broadcast television.
- Arch-Enemy: Nightshade.
- The Fourth Wall Will Not Protect You: :His entire shtick is that he can hack television broadcasts, and once he becomes a living consciousness stuck in a TV, he hacks into The Flash's show itself during the credits of his episode
- Hollywood Hacking: The most obvious example is that he can apparently turn televisions into cameras, despite the TVs of that era not having that ability because there were no inbuilt cameras and microphones to hack into.
- Human Popsicle: He put himself in frozen hibernation for 35 years.
- May–December Romance: One of his less villainous traits is his devotion to his girlfriend from the '50s, even though he hasn't aged in the '90s thanks to cryo-sleep, but she's now nearing the end of middle age.
- Politically Incorrect Villain: Used the offensive term "colored" when he learns Nightshade is African-American.
- Villain of Another Story: He had run-ins with his nemesis Nightshade prior to both of their introductions to the show.
- Zeerust: His idea of the 1990's, while he was living in 1955.
Deadly Nightshade
Curtis Bohannan
Species: Human
Played By: Richard Burgi
Known Aliases: Deadly Nightshade
Appearances: The Flash
A killer who takes some strong inspirations from the previous Nightshade, who is drawn out of retirement to stop his deadly successor.
- Anti-Hero: And quickly becomes an Anti-Villain.
- Arch-Enemy: Nightshade takes it personally that someone has taken up his mantle to do evil.
- Expy:
- An obvious one to Nightshade, to the point where characters get confused why he keeps alternating between shooting at and helping the Flash.
- Also one to Helena Bertinelli/The Huntress, another "superhero" who outright kills the bad guys.
- Hero with an F in Good: His actions as a "hero" to Central City nearly leads to a police manhunt on every active hero operating there, angry that their superheroes were now murdering criminals.
- He Who Fights Monsters: Embraces this completely.
- Legacy Character: The second person to take up the "Nightshade" mantle, but the first to start killing.
- Meaningful Name: "Deadly Nightshade" is the nickname for a type of plant that kills whoever eats it.
- Meaningful Rename: He's added the prefix "Deadly-" to "Nightshade" since he chooses to outright murder criminals instead of apprehending them.
- Nominal Hero: He wants to take down criminals, but that's the only "heroic" quality of his.
- Well-Intentioned Extremist: He has extreme ways of getting rid of criminals, including nearly killing the original Nightshade when he won't assist in the crusade.
Mirror Master
Sam Scudder / Mirror Master
Species: Human
Played By: David Cassidy
Known Aliases: Mirror Master
Appearances: The Flash
Professional thief who is an expert with mirrors and holography.
- Adaptational Wimp: He can't travel through reflective surfaces, instead relying entirely on advanced stolen holographic technology to create illusions to hide his crimes.
- Alliterative Name: Sam Scudder, aka Mirror Master.
- Badass in a Nice Suit: Wears a suit in combat.
- For Want of a Nail: For some reason, his Earth-1 counterpart is played by Grey Damon instead of David Cassidynote .
- Not Wearing Tights: Wears a suit, a typical gangster wear, instead of his green and orange uniform from the comics.
Captain Cold
Leonard Wynters / Captain Cold
Species: Human
Played By: Michael Champion
Known Aliases: Captain Cold
Appearances: The Flash
Infamous albino hitman known for freezing his victims to death with a nuclear-powered freeze gun.
- Adaptation Name Change: His real surname in the comics is Snart.
- Adaptational Jerkass: This Captain Cold is a hitman, not a bank robber.
- Alliterative Name: As Captain Cold.
- Badass in a Nice Suit: Wears a suit in combat.
- Badass Longcoat: It goes well with the aforementioned nice suit.
- Bus Crash: His corpse is seen in the Elseworlds event in Earth-90.
- Composite Character: His appearance and attitude puts him closer to Mr. Freeze than Leonard Smart.
- For Want of a Nail: For some reason, his counterparts from Earths 1 and X are both played by Wentworth Miller instead of Michael Champion.
- Freeze Ray: His main weapon.
- Heel–Face Turn: Apparently happened at some point after the series end, as he's shown as part of the group of defeated heroes that fought with Barry against the Monitor.
- Kill It with Ice: His method.
- Meaningful Name: Probably the reason for his Adaptation Name Change.
- Professional Killer: His main profession.
Omega
Omega
Species: Android
Played By: Sven-Ole Thorsen
An android tasked with retrieving fellow android Alpha.
- Artificial Human: One designed to kill people.
- Expy: Of The Terminator.
- Facial Horror: The audience gets to see his face melting in a gloriously terrifying close-up.
- The Stoic: Doesn't show emotion at all during his appearance.
- Your Head Asplode: The Flash electrocutes him in one of the goriest death scenes in the series.
The Trickster
James Montgomery Jesse / The Trickster
Species: Human
Played By: Mark Hamill
Known Aliases: The Trickster
Appearances: The Flash
A psychopathic and delusional mass murderer and con artist.
- Adaptational Jerkass: Like Captain Cold, the comics Trickster was a perfectly sane bank robber. This version pretty much served as a dry run for Hamill voicing The Joker in Batman: The Animated Series, being an elusive Master of Disguise and Serial Killer across six different states.
- Alliterative Name: If you don't count "Montgomery". Also, The Trickster.
- Ax-Crazy: He is quite psychopathic.
- The Bluebeard: Strongly implied by the cops who arrested him, since he apparently murdered twelve other women he'd apparently claimed affection for and nearly killed Megan Lockhart when playing a magician.
- Breakout Villain: Was popular enough to be completely transplanted into the Flash remake, with the same actor and backstory, even including photos of his appearances in the 1990 series.
- Casting Gag: An obscure in-joke. In the comics, Jesse is known for wearing shoes that allow him to walk in the sky.
- Evil Is Hammy: He has a heavy tendency to engage in Chewing the Scenery.
- Gadgeteer Genius: The reason he's such a threat. He can apparently turn usually harmless toys and tools into deadly weapons and traps using his own skill with mechanics and technology similar to Jigsaw from the Saw series.
- Practically Joker: Exaggerated from his comic self, and it'd be a characterization shared in the 2014 series. Like the Joker, he constantly reinvents himself and can go from a villainous terrorist or concert pianist if it fits his fancy. In fact, Mark Hamill would later go on to become who many people find to be the definitive Joker voice actor.
- Psychological Projection: He despises the idea of being normal and forgotten. There's a scene where he refuses to let the helpless Flash be unmasked and, slowly looking away and retreating to something else, he claims that without the mask, he's nothing, or more particularly:"He is the mask! Without the mask, he's... nothing! Bupkis! Nada! Zip! Just some boring, average, insignificant jerk nobody who cares about... he'll die alone, and forgotten, watching game shows in an empty apartment... with cats." [snapping at his sidekick] "So you touch that mask again, I'll MURDER ya." [smile] "'kay?"
- Renaissance Man: A skilled engineer, master of disguise, mechanic, and orator among other things. His ability to pass himself off as a lawyer, doctor, and almost get himself elected mayor of San Antonio shows he's as versatile as he is dangerous.
- Stalker with a Crush: Obsessed with Megan Lockhart and kidnaps her to be his fantasy sidekick, Prank. After killing the Flash, he planned on forcing Megan on a "romantic honeymoon" before presumably disposing of her.
- The Trickster: He's the trope personified.
Prank I
Megan Lockhart / Prank I
Species: Human
Played By: Joyce Hyser
Known Aliases: Prank I
Appearances: The Flash
Private investigator and repossession agent who became the first sidekick to The Trickster.
- Affectionate Nickname: Often referred to Barry as "Red," due to his suit.
- Blackmail: Does this to Barry after deducing his Secret Identity. She later reforms.
- Heel Realization: Initially antagonistic towards Barry, she changes her opinion of him once she sees him in action first hand.
- Third-Option Love Interest: For Barry, with Tina and Iris respectively filling the Betty and Veronica roles.
Prank II
Zoey Clark / Prank II
Species: Human
Played By: Corinne Bohrer
Known Aliases: Prank II
Appearances: The Flash
The second sidekick to The Trickster, and deeply in love with him.
- Even Evil Has Loved Ones: Deeply in love with James Jesse.
- From Nobody to Nightmare: From toy store owner to a psychotic supervillain's sidekick.
- Legacy Character: The second to take up the mantle of Prank, though the first to be a willing lackey.
- Psycho Sidekick: Completely willing to go along with The Trickster's murderous plans.
- Superior Successor: Far more effective as a crime partner to James Jesse than Megan Lockhart.
- The Trickster: Fulfils this role alongside James Jesse.
- Villainous Crush: With the Trickster.
- You Have Outlived Your Usefulness: During the climax of her sole episode, The Trickster kicks her out of a getaway vehicle after getting annoyed with her one too many times and she ended up apprehended by the police. An alternate version fared quite better, forming a reciprocated romantic relationship with The Trickster and even having a son.
Pollux
Pollux
Species: Cloned Enhanced Human
Played By: John Wesley Shipp
Appearances: The Flash
A clone of Barry Allen, possessing all of his power and none of his maturity.
- Clones Are People, Too: Barry never once treated him as inferior to him, and is even saddened after his death.
- Cloning Blues: He's a rather unstable clone of Barry, and hates being referred to as "fake".
- Evil Knockoff: He's created to combat Barry.
- Heroic Sacrifice: He ultimately gives his life to save Barry from a bullet.
- In Spite of a Nail: On Earth-1, Barry / The Flash also got an Evil Knockoff with Religious and Mythological Theme Naming and blue Color Motif who died after being shot.
- Manchild: Came out of the cloning process fully adult, but with the mind of a child. Shown when he was learning with blocks and found out they made an interesting noise when breaking glass; commenced to throw all his blocks through the glass of the lab he was in.
- Meaningful Name: Named after the Greek/Roman mythological figure who gave his immortality to save his brother, Pollux ultimately dies by Taking the Bullet for Barry.
- Psychopathic Manchild: Think of Barry but with a mentality of a child who's always throwing tantrums.
- Religious and Mythological Theme Naming: Named after one half of the twin half-brothers from Greek/Roman Mythology.
- Redemption Equals Death: Originally created to be an Evil Knockoff, he ultimately gave his life for Barry.
- Required Secondary Powers: Zig-Zagged. He can resist friction and other negative factors while running, but not as potently as the real Barry. Running too fast ultimately makes his body spontaneously combust.
- Rousseau Was Right: An Evil Knockoff literally created to fight Barry, but he is not shown to be an outright malicious person, and Barry's kindness ultimately rubs on him.
- Super Speed: He can run just as fast as Barry, but he's killed off by his own inadequate Required Secondary Powers.
Fosnight
Fosnight
Species: Human
Played By: Dick Miller
Appearances: The Flash (1990)
A police informant who gives Barry tips in criminals due to owing a “life debt” to his father Henry, which he extends to his two sons.
