Luke and Jan Valentine
Featured in: Hellsing, TV series
The Valentine Brothers are a classic example of anime "siblings" who look completely different. The deathly-pale Luke is the elder, and he's a proud but short-lived bishōnen. The dark and over-pierced Jan, the younger, has a bit of a swearing problem.
Luke's pride leads him to take on Alucard in a one-on-one challenge, believing that he, Luke, is powerful enough to take on anyone. Unfortunately (for Luke), it turns out that he knows much less than he believed; a few minutes of Alucard shapechanging freaks him out. He gets eaten by a hellhound.
Jan at least has an army of ghouls on his side, which leads him to successfully wipe the first two floors of the Hellsing house (and steal one of Integral's cigars) before Seras tackles him. On the other hand, he squeals like a baby when Walter steps on his fingers. When it becomes clear that he can't fulfill his mission, he's set on fire by remote control to prevent Hellsing from finding out what he knows.
Tubalcain Alhambra ("The Dandy Man")
Featured in: Hellsing
Alhambra uses playing cards to the same effect that Alexander uses bayonets, and comes back together in a flurry of cards in much the way Alucard does with a swarm of bats. You'd think he would have a better poker face.
He's usually suave and poised, with a stylish white suit and a charming grin. He's also a level above Luke, with effortless regeneration. But he descends into vulgarity when it becomes clear that he still isn't good enough to beat Alucard.
The Dandy was sent to Brazil to take on Alucard at the Hotel Rio, and also set aflame when his demise was certain. It wasn't quick enough this time: Alucard managed to drink his blood and thus absorb his memories, including the history of Millennium and its future plans.
In the Bible, Tubal-Cain is a son of Lamech (son of Methusael, son of Mehujael, son of Irad, son of Enoch, son of the original Cain), and the originator of the art of metalworking. He also made (brass) instruments; the name is derived from two Hebrew words that relate to bringing forth music. None of this seems to translate into the Dandy's character. Alhambra, on the other hand, is the name of a board game. There we go.
SS Sturmbannführer (Major) Montana Max
Appears in: Hellsing, Coyote
The Major is Millennium's increasingly chubby leader and coordinator. A younger, slimmer version was the victim of an attempted assassination by Alucard and a 14-year-old Walter - while he was eating dinner, no less - but survived to the present in South American with the rest of the Nazi vampire research.
Today he's loosing the dogs of war again, with the help of his loyal subordinates and some ruthless strategy. His motive is not lust for power, not a wish to get revenge for events of WWII, not a patriotic impulse in the name of Germany, not xenophobic hatred. He just likes war.
He's also secretly an otaku. (Gee, thanks, Hirano; we don't get enough bad press already.)
A very skinny proto-Major appeared in Coyote as the nemesis of its proto-Pip hero; in this he was Hitler's cousin, fled to South America after an attack by the Coyotes, and had some backstory. How much of that backstory carries into Hellsing is unclear. (This is also where the name Montana Max originated.)
Doc
Appears in: Hellsing, The Dawn
Very much the typical mad scientist, Doc is at the forefront of the experiments that led to the Nazi manipulation of the undead. Now that Millennium can mass-produce vampires, it has offered eternal life to everyone from the Brazilian press to the British military to American presidential aides.
His lesser-known scientific achievements include the remote immolation that was used to barbecue Jan Valentine and Tubalcain Alhambra, and almost used on Rip as well. He's also the creator of Schrödinger.
Doc appears to have six fingers on each hand, which would have ordinarily made him a target of the Nazi sterilization programs (although exceptions to the policies were made for high-ranking officials, as seen in the case of Hitler's gay chief of staff). He thus gives a face to the tragically underrepresented minority of polydactylic midriff-baring male Nazis.
Hitler Youth Oberstammführer (Warrant Officer) Schrödinger
Appears in: Hellsing
This snarky Werwolf catboy prances around in a Hitler Youth uniform and bothers people (except the Major, who seems amused by him, and the Captain, who doesn't show emotion at all despite Schrö's best efforts). He's often the comic relief, but don't let that deceive you: he has more power than he lets on.
Schrö's name comes from the famous Schrödinger's Cat experiment: put a cat in the box along with a death ray that has a 50% chance of going off, and don't observe it. According to quantum theory the cat will be in two states at once - alive and dead - until you observe it. This catboy has a similar ability to be in two states at once; after appearing at a Round Table conference without bothering to go through the defenses, he explained, "I am everywhere and nowhere."
Schrö was created by Doc, and although he's only been used as a messenger so far, his role in the future has great potential.
SS Obersturmführer (First Lieutenant) Rip van Winkle
Featured in: Hellsing, The Dawn
At first, Rip seems to be a formidable vampire. She marches onto the H.M.S. Eagle after it's been taken over by mutinous vampiric crew members; she congratulates the young undead and cheerfully informs them that they are now expendable, then executes them; she paints a massive swastika on the deck and then sits back and proceeds to shoot down any British force that comes near.
Rip's musket is loaded with "magic bullets" - enchanted shots that never miss their marks, an idea from German folklore that featured prominently in the opera Der Freischütz by Carl Maria von Weber. In the opera, a young ranger makes some of these bullets to win a shooting contest - but at a price. The black huntsman, Samiel, must be paid for the magic bullets. Rip sings from the opera constantly during her mission, and her self-assurance collapses when her own Samiel, Alucard, appears. (For more on the connections between Rip and the opera, click here. For discussion about the significance of her name and her rifle, see here.)
Rip has grown since her original encounter with Alucard during The Dawn, and manages to face him; although she's killed, drained, and absorbed the same way Alhambra was, the Major asserts that she's fulfilled her mission perfectly.
Amidst all this use of Der Freischütz, the literary origin of her name - the story of Rip van Winkle - is rarely brought up. It's alluded to in the fact that she carries around an alarm clock.
SS Hauptsturmführer (Captain) Hans Günshe
Featured in: Hellsing, The Dawn, early Hirano manga
Captain Hans Günsche doesn't say a lot besides "....". But he's another one that you shouldn't underestimate. Walter first met him during Hellsing: The Dawn, when the Captain stopped Walter's wires from slicing the Major into pieces - by catching them.
The battle was interrupted, and both players lived, despite the Captain's lycanthropic transformation. He spends much of the early manga lurking around and looking stoic. During Operation Seelöwe - the current assault on England - he reemerges and makes a dramatic entrance by catching Walter's wires again.
Our favorite mild-mannered butler recognizes him instantly, and they resume their duel. The exact events that followed are still clouded.
The Captain's name is taken from the name of the proto-Captain character in an early Hirano hentai manga, and may be derived from that of Sturmbannführer Otto Günsche.
SS Obersturmführer (First Lieutenant) Zorin Blitz
Featured in: Hellsing, The Dawn?
Zorin does for the alphabet what Incognito did for glowing purple lines. Half of her body is covered with tattoos of random letters (which are sometimes not so random, including phrases like "TRIGUN MAXIMUM" and "MISSION IMPOSSIBLE"), which she can extend onto the surfaces around her as she brings them under her influence.
Zorin came to England with Operation Seelöwe; her target is the Hellsing house, defended by Seras, Pip, and the Wild Geese. Zorin works with a scythe and is perfectly ruthless. She approached in a zeppelin which Seras brought down with the Harkonnen II; in response, Zorin landed the flaming blimp on top of them.
Her main trick lies in illusion: she looks into your soul and creates false images to distract you. One of the Geese got an illusion of his daughter; the whole troop was distracted by the illusion that the house had been knocked down around them by a giant scythe. Seras sees through these illusions, but is caught up in a flashback to the death of her parents.
In short: Zorin almost kills Seras; Pip saves Seras; Zorin fatally wounds Pip; Pip tells Seras to drink his blood; Seras does so, absorbing Pip's soul; Seras/Pip kills Zorin. Messily.
"She"
Appears in: The Dawn
The mysterious source of the Nazi undead experiments overseen by Doc, She is never positively identified. Described as "perfect and horrible".
"She is our heroine," the Major says. "She is our beginning and our end. Once before, sanity and insanity fought over her. They trampled her underfoot. She is just what is left over."
The most obvious mythological candidate for She is Lilith, Adam's first wife; before their defeats, Rip and Zorin were also suspects. It's clear now, though, that her identity will not be revealed until the end of Hellsing.