Libra · by personality
Sherlock Holmes · Criminal network
Professor Moriarty: zodiac sign and birth chart
Professor Moriarty has no canon birthday. Conan Doyle never gives one. Read from his personality, he is a Libra. Libra Sun and Mercury: charm, balance and an excellent manner. Behind it is a Sagittarius Moon and Mars that plays for the biggest stakes. He is Holmes's archenemy, the same kind of mind on the other side.
- SunLibra
- MoonSagittarius
- RisingAquarius
- MercuryLibra
- VenusVirgo
- MarsSagittarius
SourceNo canon birthday: Conan Doyle's stories give Professor Moriarty no date. The chart is NEBO's take, read from his personality.
Birth chart
Moriarty's chart at a glance
No canon birthday, so this is NEBO's take, read from his character.
- Fire2
- Earth1
- Air3
- Water0
- Mostly air. 3 of his 6 placements are air signs.
- About 1 in 13 birthdays get Moriarty in the app's Sherlock Holmes world.
NEBO's take
No birthday in canon. His personality says Libra.
We ran Moriarty through the same model that matches people to characters in the app, and looked at which chart gets him most often. It reads him as air with fire underneath: polite, brilliant and always playing for more.
Canon
No canon birthdayNever given in Conan Doyle's storiesNEBO's take
Libra SunRead from his personality- Sun
CanonNot in canonNEBO's takeLibra
Libra keeps a perfect surface. A respectable mathematics professor who is also the head of a criminal network.
- Moon
CanonNot in canonNEBO's takeSagittarius
A Sagittarius Moon wants the biggest game. He treats London as a board.
- Rising
CanonNo birth timeNEBO's takeAquarius
No birth time in canon. First impression: a thin, stooping man with a curious way of swaying his head.
- Mercury
CanonNot in canonNEBO's takeLibra
Libra Mercury is polite and exact. He warns Holmes in his own sitting room, without once raising his voice.
- Venus
CanonNot in canonNEBO's takeVirgo
Virgo Venus loves order. His web is organized so that crimes happen at other people's hands and he cannot be found.
- Mars
CanonNot in canonNEBO's takeSagittarius
Sagittarius Mars plays for the big finish. He is willing to risk everything for one final confrontation.
What canon does give: a respectable professor of mathematics quietly running a network of criminals. Libra supplies the manner, Sagittarius the ambition.
How he shows up
Why he's like this
Libra is the sign of charm, balance and a flawless public face. Moriarty hits it in scenes fans know.
CoreLibra Sun
Professor by day
He is a respectable professor of mathematics who wrote a famous treatise at twenty-one, and a criminal mastermind on the side.
The Final Problem
MindMercury in Libra
The polite warning
He visits Baker Street, sits down and calmly tells Holmes to stop, without once raising his voice.
The Final Problem
LoveVenus in Virgo
The web
Holmes compares him to a spider at the center of a web, with threads running everywhere, so crimes happen at other people's hands.
The Final Problem
In a fightMars in Sagittarius
Theatrical in the BBC series
In the BBC version he is eccentric, theatrical and creepily cheerful, a consultant for criminals who breaks into the Tower of London, the Bank of England and a prison in the same day.
Sherlock (BBC), The Reichenbach Fall
FeelingsSagittarius Moon
Over the falls
He and Holmes meet at the Reichenbach Falls, and the story ends with both of them going over.
The Final Problem · spoiler
Your turn
Which Sherlock Holmes character are you?
Pick your birthday. Your Sun sign gives a first answer right here, then the app reads your whole chart.
Aries girls get Irene Adler most often. Aries guys get Mycroft Holmes.
You and Moriarty: Opposite signs. You see each other's blind spot.
Taurus girls get Sally Donovan most often. Taurus guys get Inspector Lestrade.
You and Moriarty: Signs that speak different languages. Curious mix.
Gemini girls get Mary Morstan most often. Gemini guys get Sherlock Holmes.
You and Moriarty: Same element, air. Easy chemistry, same pace.
Cancer girls get Molly Hooper most often. Cancer guys get Dr. Watson.
You and Moriarty: Signs at a right angle. Friction, the useful kind.
Leo girls get Eurus Holmes most often. Leo guys get Charles Augustus Magnussen.
You and Moriarty: Signs that cheer each other on. Good team.
Virgo girls get Molly Hooper most often. Virgo guys get Sherlock Holmes.
You and Moriarty: Next-door signs. Different instincts, lots to learn.
Libra girls get Irene Adler most often. Libra guys get Professor Moriarty.
You and Moriarty: Same sign. You'd get each other without trying.
Scorpio girls get Molly Hooper most often. Scorpio guys get Dr. Watson.
You and Moriarty: Next-door signs. Different instincts, lots to learn.
Sagittarius girls get Irene Adler most often. Sagittarius guys get Wiggins.
You and Moriarty: Signs that cheer each other on. Good team.
Capricorn girls get Sally Donovan most often. Capricorn guys get Inspector Lestrade.
You and Moriarty: Signs at a right angle. Friction, the useful kind.
Aquarius girls get Eurus Holmes most often. Aquarius guys get Sherlock Holmes.
You and Moriarty: Same element, air. Easy chemistry, same pace.
Pisces girls get Mary Morstan most often. Pisces guys get Dr. Watson.
You and Moriarty: Signs that speak different languages. Curious mix.
That's your Sun sign talking. The app reads your Moon, Venus, Mars and the rest, and the answer can change.
Get my real Sherlock Holmes character→Chemistry
Who Moriarty clicks with, and who he clashes with
Read from the charts on their pages. The plot may disagree.
Clicks with
- Eurus HolmesSagittarius Moon+Aquarius MoonMoons in friendly signs: they know how to settle each other down.
- Charles Augustus MagnussenSagittarius Moon+Leo SunSun and Moon in the same element: around each other, they feel seen.
- Irene AdlerSagittarius Moon+Sagittarius MoonMoons in the same element: they calm down the same way, no translation needed.
Clashes with
Pick a side
Are you more Moriarty or Watson?
Your birthday settles it. The app reads your whole chart and tells you who you really get.
Similar charts
Who else has Moriarty's chart
Famous Libras with his placements
Their charts line up with NEBO's take on Moriarty. A chart match only: none of them is connected to this page.
Travis KelceLibra Sun · Sagittarius Moon
MokaLibra Sun · Mercury in Libra, Venus in Virgo
Bruno MarsLibra Sun · Mercury in Libra, Venus in Virgo%2520(53792876988)%2520(cropped).jpg)
Doja CatLibra Sun · Mercury in Libra, Mars in Sagittarius
Kim KardashianLibra Sun · Venus in Virgo, Mars in Sagittarius
Bang ChanLibra Sun · Mercury in Libra, Mars in Sagittarius
Moriarty in real life
The app casts Baby Keem (Libra, Moriarty's own Sun), Seonghwa (Aries) and Noah Beck (Taurus) as Moriarty.
Sherlock Holmes
Characters like Moriarty
Closest charts first: shared signs, same elements.
Which Sherlock Holmes character are you?
Add your birthday and the app finds your Sherlock Holmes character, your place at Baker Street and how close you are to Moriarty.
Are you Moriarty? Find your character→Questions
Moriarty's zodiac sign: what people ask
What zodiac sign is Moriarty?
Canon never says. Conan Doyle never gives one. By personality, NEBO's take is Libra.
When is Moriarty's birthday?
It isn't given anywhere in canon, so there is no real date to point to.
Is Moriarty a Libra?
By personality, yes: polished, brilliant and ruthless. NEBO's model reads him as a Libra: charm first, ambition behind it. It's NEBO's take, not canon, because no birthday exists.
What is Moriarty's birth chart?
NEBO's take: Sun in Libra, Moon in Sagittarius, Aquarius rising, Mercury in Libra, Venus in Virgo, Mars in Sagittarius. Read from his personality, not from a canon date.
What element is Moriarty?
Air. Libra is an air sign, and 3 of his 6 placements are air too.
Who is Moriarty most compatible with?
By chart, Eurus Holmes, Charles Augustus Magnussen and Irene Adler. Sagittarius Moon and Aquarius Moon: they know how to settle each other down.
Unofficial fan page. Sherlock Holmes and its characters belong to their respective owners. NEBO is for entertainment.
NEBO is for entertainment and self-reflection, not medical, psychological or financial advice.
TermsPrivacyImpressumCelebrity birth chartsZodiac signsFandom charactersZodiac compatibility2027 HoroscopeCelebrity birthdays© 2026 NEBO LABS LLC