High Council of Hydra
Elisa Sinclair

Alter Ego: Madame Hydra (IV)
First Appearance: Captain America: Steve Rogers #1 (July, 2016)
A new Madame Hydra, Elisa Sinclair, debuted in Captain America: Steve Rogers #1 (July 2016), created by Nick Spencer and Jesús Saiz. She originally appeared to be a character inserted in Steve Rogers' memories of his childhood by the sentient Cosmic Cube Kobik to retroactively turn him into a Hydra double-agent. However, she resurfaced in the present, having taken up the mantle of Madame Hydra, claiming to be a powerful ancient being of great powers. She took upon collecting a new Hydra High Council, which includes Viper.
- The Corruptor: The reason "Hydra Steve" turned out the way he has is because of her getting her claws into a young Steve Rogers.
- Cosmic Retcon: Created by one.
- Evil Sorcerer: Uses magic in her efforts to help Hydra Supreme.
- Evil Mentor: To "Hydra Steve".
Gorgon

Alter Ego: Tomi Shishido
First Appearance: Wolverine Vol. 3, #20 (2005)
Tomi Shishido is a mutant extremist that formed the "Dawn of the White Light" cult. He has served as a high-ranking official of The Hand and HYDRA. Shishido ranks among the most skilled swordsmen of the world.Hive

Alter Ego: Unknown
First Appearance: Secret Warriors #2 (May, 2009)
Member of HYDRA and part of the HYDRA High Council.
- Cthulhumanoid: Looks like some sort of humanoid squid or octopus.
- Humanoid Abomination: He might be able to stand like a human, but he's a mass of tentacles underneath.
- The Unintelligible: Speaks in his own language. Still, everyone else seems to understand him.
Viper

Alter Ego: Ophelia Sarkkissian, Madame Hydra I
First Appearance: Captain America #110 (February, 1969)
Ophelia Sarkissian was orphaned as a child in Hungary. Among twelve other girls, Ophelia was taken in by Hydra and raised by Kraken, eventually becoming Kraken's best student. She rose through the ranks of Hydra, eventually becoming its leader under the codename Madame Hydra, and frequently came into conflict with Captain America and S.H.I.E.L.D. She later severed ties with Hydra and from then onwards became known as Viper after killing the previous supervillain codenamed Viper (Jordan Strike) to usurp his codename and leadership of the Serpent Squad.
- Actually a Doombot: Viper had an out-of-character appearance in a storyline featured in Punisher War Journal #45-47 (August-October, 1992)., where she served as an ally to Daredevil, Nomad, and The Punisher. A year later, Gregory Wright wrote a story where it was revealed that Viper has been using look-alike "Pit-Vipers" to act in her name. The "Viper" appearing in the Punisher storyline was a rogue Pit-Viper with her own agenda.
- Ax-Crazy: Of all the things that she is, she is not sane.
- Arch-Enemy: To Spider-Woman (Jessica Drew) due to Jessica being raised by Hydra and possibly becoming the next Madame Hydra. One story revealed Jessica to be the Viper's daughter, though it was later retconned that some magical force was toying with their minds. Viper assumed that it was Jessica who messed with her mind and set out to destroy her "daughter". Twenty years later, Viper tried to coerce Jessica (actually the Skrull Veranke) into an alliance, and the story hinted that Viper still viewed Jessica as the closest thing she had to a family.
- Badass Normal: She (usually) possesses no superhuman powers. But her strength, speed, reflexes, agility, dexterity, coordination, balance and endurance are on the order of an Olympic athlete. She is a great swordswoman and even greater markswoman with most long range weapons, and has extensive training in hand-to-hand combat.
- The Baroness: Trope Codifier. In fact, the Baroness from G.I. Joe is actually inspired from her. When Hasbro approached Marvel about doing a G.I. Joe comic book, they simply dusted off an unused proposal for a Nick Fury vs. HYDRA series and changed the names. Thus HYDRA became COBRA and the Viper became the Baroness. The only significant difference between the characters is the color of their leather bodysuits and hair; black for the Baroness, green for Madame Hydra.
- Big Bad: As the head of Hydra she counts whenever they are involved.
- Blemished Beauty: She is quite beautiful, save for scarring over the upper right side of her face (which she usually hides behind her Peek-a-Bangs).
- Brainwashed and Crazy: Despite Viper having a tendency to mind-control her opponents, she often finds herself mind-controlled or manipulated by other villains with this power. She has had her mind tampered with by the Elder Gods Set and Chthon, by the immortal witch Morgan Le Fay, and (to a lesser point) by the illusions of Mastermind. They have all used Viper as a convenient weapon for their agendas, sending her against their enemies. Even her memories have been altered at times.
- Bulletproof Vest: Viper is deadly, but she is still a normal human being, and she can be taken down by a single bullet. Her various uniforms incorporate kevlar to keep her body safe. Given that she never wears protective helmets, it is unclear why her opponents do not simply aim for her head.
- Came Back Wrong: In Secret Warriors #12, Viper is kidnapped by the mysterious Leviathan group, who are determined to find out the location of a mysterious box that both she and the current Madame Hydra (the Contessa Valentina Allegra de Fontaine that has replaced Viper) procured from the Yashidas. Madame Hydra arrived at the Leviathan headquarters and offered the box to its leader, much to Viper's dismay. Madame Hydra then shot Viper to death. However, when Hydra arrived, the Hive resurrected her, giving her tentacles that stemmed from her head, and she renames herself Madame Hydra.
- Combat Pragmatist: While perfectly capable of taking out opponents in a straight fight, Viper's strategies tend to rely on ambush tactics, deception, and use of drugs, gases, and poisons. She knocked out Thor by having him inhale one of her drugs. When she wanted to take over the relatively powerful Serpent Society, she had a group of villains infiltrate the organization and then attacked when nobody expected it. Most of the Serpents were caught in their civilian clothes, their gym clothes, or their bathrobes and underwear, without access to their uniforms and weapons. When she wanted to take out the X-Men, she simply poisoned their tea and send most of the team to the hospital.
- Dark Action Girl: A really combat-efficient female villain.
- Dating Catwoman: She is Wolverine's ex-wife; she blackmailed him into it, and in turn he got the divorce by refusing to give her medical treatment otherwise. It is implied she had started to develop real feelings for him.
- Depending on the Writer: For whatever reason, Brian Bendis consistently writes her as an anarcho-communist, rather than the unhinged lunatic most other writers prefer.
- Eviler than Thou: She has the rare distinction of being this to the Red Skull of all people from time to time simply because he views her sadistic schemes and planned massacres as so gratuitously awful with no apparent benefit for either of them other than just For the Evulz that he cannot tolerate them.
- Even Evil Has Loved Ones: She may have cared about Wolverine at some point, and she definitely had feelings for the Silver Samurai. A Marvel Team-Up storyline from 1979 also mentions a months-long romantic affair between Viper and a Japanese terrorist leader called Ishiro Tagara. He found Viper when she was sick and weak from previous battles, nursed her back to health, worked to restore her sanity and confidence in her self, and showered her with love (which she found to be an unfamiliar experience). Tagara has not appeared since, and he is a rather obscure character.
- On a more family-oriented kind of love, a few stories have Viper still mourning over her half-forgotten parents (whose murder is the earliest memory she still has) and an unknown number of sisters (who she witnessed getting raped and discarded).
- For the Evulz: She usually has a greater goal in mind, but she isn't above committing mass murder or being disturbingly petty for shits and giggles.
- From Nobody to Nightmare: Viper started out as a nameless orphan girl of obscure background. Unlike other villains such as Baron von Strucker and the Barons Zemo, she does not come from an old aristocratic family, did not inherit any wealth, and started out with no connections. She just struggled to survive. She passed her Hydra training with flying colors, due to being the most determined, ambitious, and aggressive of available recruits. She has used that drive to bring down states and organizations, to take over entire nations (such as Madripoor), and to terrorize heroes and villains alike.
- Green and Mean: Her main color is green, and mean doesn't even begin to describe her.
- I Have Many Names: Madame Hydra; Viper; dozens of aliases. Among her most prominent aliases are "Leona Hiss", the unimaginative "Mrs. Smith", and "Meriem Drew" (the true name of Spider-Woman's mother). She also once impersonated Black Mamba/Tanya Sealy of the Serpent Society and used Tanya's name and codename.
- Jerkass: The C-word would actually be the most accurate to describe her attitude and general behaviour.
- Kick the Dog: Prone to it and proud of it. You know it's bad when the Red Skull thinks that her schemes were gratuitous with no apparent benefit for either of them. One of her plans involved blinding every person in the United States who stared at a television screen. Leaving millions blind and helpless, and causing the country to collapse in chaos. Red Skull found out about this plan. He was an American citizen by this point, and all his business investments were located in the United States. He realized that the country would collapse around him and that it was unlikely it would recover within his own lifetime. He did not want to experience this kind of world, so Red Skull set out to rescue the country from Viper.
- Legacy Character: The first Viper was a man, then Madame Hydra killed him and stole the name.
- Manipulative Bastard: She knows how to manipulate people.
- Mighty Whitey and Mellow Yellow: Gender flipped. Viper is a European woman from Hungary, but her most enduring romantic and emotional relationship involved her and the Silver Samurai, a Japanese villain.
- Most Common Super Power: She has very buxom breasts.
- Ms. Fanservice: Despite being evil, Viper is a beautiful woman with dark green hair and lipstick who wears a very form-fitting jumpsuit that accentuates her voluptuous yet toned body, buxom breasts, toned broad shoulders, and long toned legs.
- Nebulous Evil Organization: Usually associated with HYDRA, hence Madame Hydra. She has had a history of joining (and often taking over) other villainous organizations. She has joined the Serpent Squad, the Serpent Society, the Secret Empire, and the Inner Circle of the Hellfire Club.
- Nietzsche Wannabe: Her nihilism and tendency to spread death around her has made it hard for other villains to associate with her. Only the Red Skull has found it a charming tendency and pursued a relationship with her for a while. The relationship ended when the Skull found out Viper was using his resources to finance massacres with no apparent financial benefit for either of them.
- Not Afraid to Die: While she struggles for her life as much as any other villain of the Marvel Universe, Viper reportedly has long ceased fearing death. She views death as a peaceful oblivion, and a great merciful void which she is tempted to embrace. And she would like for all humanity to embrace it as well. A few background profiles mention that Viper is an opium user, and that she both meditates and has opium dreams about death.
- One-Steve Limit: Enforced lethally when she decided to take on the name Viper. She murdered the original Viper and took over the Serpent Squad.
- Orphanage of Fear: Raised in one, ran by none other than Hydra.Ophelia Sarkissian: We were orphans. Little girls, all alone. Hydra gave us a home. Eight great houses. Twelve girls to a house. And in the end, the most determined... the most ambitious... the most aggressive... That girl would be the Viper. All it cost was everything.
- Peek-a-Bangs: Her default hairstyle wears her hair over one eye. This was justified in earlier stories, though it no longer has an explanation. The concept was that the upper right side of Viper's face was scared and disfigured, causing her to use her hair to hide her imperfection. For a while it was even unclear whether she had two eyes, or only one functioning eye and one blind or missing eye. Over the last couple of decades, the scars were retconned away. Viper now has a perfect face, two undamaged eyes, and perfect vision. A few older fans and their websites complain that Viper no longer looks like herself.
- Poisonous Person: In her case it is intentional. Viper has modified her canine teeth into particularly sharp and elongated fangs. Her fangs contain a lethal and neurotoxic snake venom, to which she has developed an immunity. All she needs is to bite her opponents (preferably in their necks) and they are incapacitated or dying. A less often used trick, is coating her lipstick in poison. One touch of her lips and the victim is down for the count.
- Psycho for Hire: When working for somebody else. It says something when ever the Red freaking Skull thinks you're too unstable.
- Really 700 Years Old: She may or may not have been granted a supernatural lifespan by the demon Chthon, and have originally been a woman who died in 1931.
- Rogues' Gallery Transplant: If she is not fighting Cap, she is probably fighting Wolverine, though she has tangled with most of Marvel's other heroes by now, and once believed she was the mother of the first Spider-Woman. Among other foes over the years, Viper has faced (in chronological order): Nick Fury and S.H.I.E.L.D., the Avengers (she once used sleeping gas on the entire active roster), Namor the Sub-Mariner, the Black Widow (who once was Viper's prisoner and subjected to extensive torture), Shang-Chi, Spider-Man, the New Mutants (Karma has served as an archenemy for Viper for a couple of decades), the X-Men (she once poisoned most of the group), the Serpent Society (a villainous organization which Viper took over once in a violent coup), the Falcon, Nomad, D-Man, Moon Knight, the Punisher (who she once turned into a mind-controlled minion), Dr. Strange, Solo, Silver Sable and the Wild Pack, Hawkeye, the Beast, Spiral (a former ally who Viper double-crossed), Jean Grey (who she once turned into a mind-controlled minion), Psylocke (who she once turned into a mind-controlled minion), Rogue (who she once turned into a mind-controlled minion), Shadowcat (who she once turned into a mind-controlled minion), Tyger Tiger (who she once turned into a mind-controlled minion), Yukio (who she once turned into a mind-controlled minion), Jubilee, Sabretooth (who tried to assassinate Viper due to her marriage to Wolverine), Matsuo Tsurayaba and the Hand, Arnim Zola (who once captured Viper to use her in one of his own agendas), Ogun (who once tried to take over the Viper's body), Khan (an alien invader and world-conqueror), Sage, Archangel, Husk, Callisto, and Iron Man (who deposed Viper from her head-of-state status in Madripoor). Curiously, Viper has never faced Daredevil, despite having guest-starred in several of his stories.
- Sadist: A psychological and physical sadist, who enjoys hurting people for the hell of it. Noticing a trend with Cap's rogues?
- Secondary Color Nemesis: She wears all-green clothes. She also dyes her hair green (its natural color is black), uses green lipstick, and green fingernail polish. Her eyes are also green, but this is their natural color.
- Averted in a few Uncanny X-Men stories from 2004-2005. Viper joins the Hellfire Club in the new position of White Princess (second-in-command to the White Queen). She discards her traditional green uniforms for white ones, to match her new position and to color-coordinate with White Queen Courtney Ross. Following this aborted arc, Viper returned to the green uniforms.
- Spy Catsuit: Often wears a form-fitting catsuit.
- Unholy Matrimony: Had this with the Red Skull, even engaging in a Two-Person Pool Party when they met.
- Villain Ball: Sometimes she's managed to torpedo her own plans because she such a raging nutcase she can't help herself. One instance is during a scheme in Captain America, when she steps out from where she's hiding solely to gloat at Cap having to fight a brainwashed Not-Ronald Reagan.
- Whip It Good: Despite Viper having access to various technologically advanced weapons, she frequently reverts to using her beloved bullwhip against her opponents. In her hands it is a rather deadly weapon.
Arnim Zola

First Appearance: Captain America #208 (April, 1977)
Doctor Faustus

Alter Ego: Johann Fenhoff
First Appearance: Captain America #107 (November, 1968)
Hydra Supreme

Alter Ego: Steven "Steve" Rogers
First Appearance: Captain America: Sam Wilson #7 (May, 2016)
A HYDRA loyalist Steve Rogers created by Kobik, the sentient Cosmic Cube at the behest of the Red Skull.- The Bad Guy Wins: Secret Empire begins with him successfully taking over the United States. It gets undone when he is defeated by his counterpart.
- Big Bad: Of Secret Empire, having taking the role of Supreme HYDRA and masterminded the HYDRA takeover of the US which he rules over. He also oversees the hunt for the Cosmic Cube fragments.
- Bitch in Sheep's Clothing: Pretends to outwardly be the same old Steve everyone knows, loves and respects, while hiding his disdain for them, as he sets them up for a fall.
- Boomerang Bigot: He very much dislikes, if not outright hates superhumans, despite technically being one himself.
- Break Them by Talking: Undermines Roberto da Costa's confidence under the guise of a What the Hell, Hero? speech, so he'll be less dangerous when the time comes.
- The Chessmaster: Well what do you expect from someone who inherited the strategic brilliance of Captain America?
- The Corrupter: He manipulated Deadpool and The Punisher into working for him as his top enforcers. He also manages to get some of the non-evil A.I.M. onto his side, and gets them to betray Roberto da Costa.
- Even Evil Has Standards: Despite being a ruthless Knight Templar himself, he is utterly disgusted at the Red Skull's cruelty and sadism.
- Evil Counterpart: To the real Captain America.
- Evil Doppelgänger: To Earth-616 Cap.
- Fantastic Racism: He has very little regard for superhuman life, going so far as to facilitate concentration camps reserved for Inhumans.
- Hero Killer: He is responsible for the deaths of Jack Flag, Bruce Banner, Rick Jones, and Black Widow (though, her's was unintentional).
- Horrible Judge of Character: Trusts his High Councilnote just because they all worked for HYDRA in the past. While most of them were fairly loyal to his cause, at least Doctor Faustus and Viper have tried to undermine him in some way.
- Hypocrite: He hates being compared to the Red Skull despite being an unrepentant mass-murderer. He even has the nerve to criticize democracy for being corrupt when his regime is so much worse.
- Kick the Son of a Bitch: The Power Elite have him broken out of prison and then brutally murdered to make their claim that he and Steve Rogers are the same man easier to sell to the public. Their reasons for doing it might be villainous but it's still very satisfying to watch as Selene melts him alive.
- Knight Templar: He uses whatever means necessary to "save" humanity, even cold-blooded murder.
- Powered Armor: Towards the end of Secret Empire, he sports one created by Zola using Stark tech.
- The Starscream: He inherited the original Steve Rogers' hatred toward the Red Skull, but feigned loyalty to the latter out of caution for his stolen telepathy from Charles Xavier. When the Skull was stripped of his powers by the Uncanny Avengers, he didn't hesitate to betray and kill him.
- Utopia Justifies the Means: He wholeheartedly believes that HYDRA's ideology, or at least his interpretation of it, is the only way of ensuring peace.
- Villainous Breakdown: He has one when the completed Cosmic Cube disappears from his armor and Sam reveals his swear of allegiance to HYDRA was a trick. Then Kobik comes back and restores the Earth after he used his cube to change history so HYDRA won the war. Then Kobik brings out the restored mind of the real Captain America in a new body.
- Villainous Friendship: In his memories he had one with Helmut Zemo, until the latter breaks it off after his father's death. They resume after he captures Zemo and persuades him to his way of thinking.
- Villain Protagonist: He was the main Captain America for a while with the true Steve Rogers trapped in the Cosmic Cube. The series revolved around him passing himself off as the normal Cap while undermining the other heroes from behind the scenes.
Baron Von Strucker

Alter Ego: Wolgang Von Strucker
First Appearance: Sgt Fury and his Howling Commandos #5 (January, 1964)
The leader (and founder) of the Nebulous Evil Organisation HYDRA, and a long-enduring foe of Captain America and Nick Fury since WWII.
- Abusive Parents: He couldn't care less for his children (at one point thanking Norman Osborn for murdering one of them) and kills one of them himself.
- Arch-Enemy: To Nick Fury, ever since WWII.
- Aristocrats Are Evil: He was a Nazi Nobleman.
- Authority Equals Asskicking: Demonstrated in one story where he spars against seven ninjas armed with swords, at the same time, while he himself is unarmed and shirtless. It's a Curb-Stomp Battle.
- Badass Boast: In the Secret Warriors miniseries, he gets a Establishing Character Moment/Motive Rant with one of these:Strucker: I am the supreme HYDRA, Baron Wolfgang Von Strucker, I witnessed the fall of nations, betrayed beliefs and ties of brotherhood abandoned by modern times. Defeat only serves to light within me the flame of my obsession. My desire is eternal.
- Bad Boss: Once blew up a base contained several thousand soldiers just to kill a handful of Skrulls.
- Bald of Evil: Bald and evil.
- Big Bad: Was the former head of Hydra before his death and after that Madame Viper took the role.
- Catchphrase: "Hail Hydra!", his organization's motto, is usually his.
- The Chessmaster: In his Secret Warriors incarnation. He was ten steps ahead of everyone but Nick Fury (and even he had his Did Not See That Coming moments)
- Cultured Warrior: Also Wicked Cultured.
- Depending on the Writer: What exactly he did in WWII. While Red Skull is relatively firmly established as an SS counter-intelligence officer of some sort (sometimes veering into scientific experiments), the writers could never quite decide what exactly was Strucker's position in WWII. He's sometimes portrayed as a SS officer conducting megalomaniacal international schemes (image above, most early comics), sometimes as a Wehrmacht officer fighting in the frontlines (Earth's Mightiest Heroes, Super Soldier video game, more recent comics) or a undecided mix of some sort. Writers also tend to flip-flop about his degree of loyalty to Nazi ideals.
- Despotism Justifies the Means: His modern-day goal.Strucker: I do not wish to cleanse the world, I simply want to rule it.
- Diabolical Mastermind: In the present.
- Dueling Scar: He has many from his youth.
- Evil Counterpart: To Nick Fury. They are both manipulative, cunning, somewhat cold-hearted, WWII veterans who command a major intelligence agency. The difference is they're in opposite sides.
- Evil Is Petty: When it comes to Fury, Strucker is unbelievably petty just to hurt the man.
- Evil Old Folks: He was a young man in WWII.
- Fantastic Racism: Toward Skrulls, at the very least, and that's after a few decades of (relative) mellowing out. These days, he'll just murder them on the spot.
- Faux Affably Evil: He can be charming, calm and soft-spoken while gloating about the downfall of your country.
- Four-Star Badass: Strucker is usually portrayed as being very high-ranking in his War days, but no less implacable.
- Genius Bruiser: Smart and badass.
- Hero Killer: In Secret Warriors. He is both very feared and actually the slayer of Nick Fury's son.
- High-Class Glass: Wears a monocle.
- Killed Off for Real: In Secret Warriors.
- Man of Wealth and Taste: It's hard to find something about him that doesn't show just how rich this guy is.
- Master Swordsman: Quite handy with a sword. It is amusing because he still carries a german longsword in the middle of the 21th century.
- Names to Run Away from Really Fast: Baron Wolfgang Von Strucker?
- Nazi Nobleman: To a T.
- Not in This for Your Revolution: Varies with the writer, but he's commonly portrayed as being more interested in pursuing his own agenda, rather than Hitler's.
- Obviously Evil: A bald, monocle wearing former Nazi with a literal Red Right Hand called Satan's Claw and facial scarring leading a fascist organisation with a symbol shaped like a skull. Yeah.
- The Patriarch: Of the Von Strucker family. Unlike the usual type, he cares very little for his family.
- Red Right Hand: Literally. He also has quite a few scars on his face.
- The Sociopath: Pretty much.
- Soft-Spoken Sadist: He's a very restrained man in most occasions.
- The Strategist: The major planner of HYDRA high-command, and back when he was a Nazi, this was his role. Though he was more combat-oriented, unlike Red Skull.
- Villainous Friendship: A type III with Kraken. He also had one with Hitler, although how sincere it was varies Depending on the Writer.
- The Von Trope Family: Von Strucker.
- What, Exactly, Is His Job?: As a result of writers not deciding his exact position in WWII, he tends to be all over the place in regards of function. His illustrious career for the German nation includes: Fighting in Africa in WWI (which would put him as a officer of the Imperial Army), enacting a scheme to topple the British Monarchy in a 1936 and trying to assassinate an American senator (both of which would put him as an Agent of the German Intelligence), fighting in the frontlines European theatre (which would put him as either a SS officer or a Werhmacht officer, and he's been portrayed as both). This means Baron Wolfgang von Strucker either changes positions like one would change gloves or he managed to amass a truly astounding amount of ranks over several different organizations of the Third Reich.
- Wicked Cultured: Quite a high taste he has.
Valentina Allegra de Fontaine

Alter Ego: Contessa Valentina Allegra de la Fontaine, Madame Hydra (III)
First Appearance: Strange Tales #159 (August, 1967)
A woman of remarkable skills and talents in many areas, the Contessa became a leading member of SHIELD and Femme Force. She is also the long time lover of Nick Fury.
In the Secret Warriors series, it is shown that Hydra has infiltrated S.H.I.E.L.D. right from the start, and Contessa Valentina Allegra de la Fontaine, an European socialite turned S.H.I.E.L.D. agent and love interest to Nick Fury, is their new Madame Hydra after having killed Viper (who Came Back Wrong).
Hydra Supreme
Madame Hydra

Alter Ego: Madame Hydra (VI [in-universe], II [in order of appearance])
A Madame Hydra created by Bob Harras and Paul Neary debuted in Nick Fury vs. S.H.I.E.L.D. #3 (August 1988). This Madame Hydra's real name was never revealed, only being known as "Madame Hydra VI" because she impressed her superiors in Hydra enough that, after only a short time in the organization, they promoted her to the level of Madame Hydra VI (the identities of Madames Hydra I through V, who rank above her, are unknown), and received an entry in the Official Handbook of the Marvel Universe Update '89 #4 under the heading "Madame Hydra VI". One of her first missions as Madame Hydra was to capture Nick Fury and deliver him to the Deltites, a group of artificially created duplicates which were taking over S.H.I.E.L.D. After failing in her mission and discovering that the Deltites were manipulating her, she allied with the S.H.I.E.L.D. agents against the takeover. She was later turned over to federal authorities and was found to be criminally insane, and sent to a sanitarium for psychiatric treatment.
- Only Known by Their Nickname: Her real name was never revealed.
Agents
Cassandra Romulus

First Appearance: Nick Fury, Agent of S.H.I.E.L.D. Vol 3 #22 (April, 1991)
Cassandra Romulus was a lieutenant in Hydra, and also the lover of Baron von Strucker.
- Dark Mistress: She had this dynamic for a time with Baron Strucker.
- What Happened to the Mouse?: While her death is never depicted, Romulus has not been utilized by writers since the 1990s.
Codename: Bravo

Alter Ego: Richard (last name unknown)
First Appearance: Captain America Vol 6 #1 (July, 2011)
An early super-soldier operative who spent decades trapped in another dimension known as Nowhere. After being freed he eventually became a villain, vengeful over being removed from his home.
- Evil Counterpart: For Steve Rogers.
- Only One Name: His full name was never revealed.
- Unholy Matrimony: He's married to Hydra Queen.
Bert Jr.

First Appearance: Falcon & Winter Soldier Vol 1 #1 (February , 2020)
A new young Hydra recruit who is also a Loony Fan of Captain America
- Affably Evil: He really is a genuine fan of Captain America as well as Sam and Bucky. And he will tell them all the things he loves about them while beating them senseless.
- Badass Normal: No powers but enough skill to take on Sam and Bucky.
- Cloud Cuckoolander: Why would a huge fan of Captain America join Hydra? Because he’s not all there.
- Worf Effect: On the delivering end. It’s shown how much of a threat he is when he’s introduced giving a Curb-Stomp Battle to Falcon and the Winter Soldier.