Why a Patronus is never random: Snape's doe and the POP MART figures

As of 15 November 2026. In the Harry Potter books a Patronus is the silver guardian conjured with the charm Expecto Patronum to drive off Dementors, and the witch or wizard does not get to pick the animal. POP MART's Harry Potter Patronus Series Figures, on sale online in the US since 27 August 2026, has 11 figures: ten characters with their Patronus, from Harry's stag to Snape's doe, plus the secret Expecto Patronum. Below is why each of them got that animal, based on J.K. Rowling's writing and the official Wizarding World site. All 11 are in the series checklist on ColleX.

The charm that gave Snape away

For years Severus Snape was the hardest character in the story to read: he despised the boy he had to protect and hid his motives so well that readers were unsure of his side until the last pages. What finally gave him away was a defensive charm. When he cast his Patronus, a silver doe appeared, the same form as Lily Potter's, the woman he had loved since childhood. Asked whether he still felt the same after all this time, he answered with one word: "Always".

That is the side of the magic POP MART's series is built around: ten well-known witches and wizards sit inside their guardians, and the secret eleventh piece recreates one of the most important uses of the charm.

What a Patronus knows about you

In the piece Rowling wrote for Pottermore, now on harrypotter.com, the Patronus is not a pet you choose but a hard branch of defensive magic. Cast it while focusing on a happy memory and you get either a wisp of silver vapour or a full corporeal animal; the majority of witches and wizards, she writes, cannot produce a Patronus at all.

Why that particular animal? Rowling cites the eighteenth-century Charms researcher Professor Catullus Spangle, who held that the Patronus represents something hidden, unknown but necessary within the personality. That is why the animal can surprise its own caster. She is just as clear that no reliable system for predicting a Patronus has ever been found, so it is not a personality test. Some forms, though, say more about their owners than any confession.

Two deer and a stag: one family

James Potter was an Animagus who turned into a stag, and his Patronus took the same form. Lily's Patronus was a doe, which the official site calls the female form of her husband's stag. Harry did not know what his own Patronus would be. In Prisoner of Azkaban he sees a huge silver stag save him and Sirius at the lake and believes for a moment that his dead father cast it; only after the Time-Turner does he realise it was his own.

The third deer is Snape's doe, explained directly by his love for Lily. In Deathly Hallows that silver doe leads Harry to the sword of Godric Gryffindor before he knows whose it is. One stag and two does, and several kinds of love between them: shared, unrequited, a parent's, and the kind that outlives the people involved. That is why Harry with Stag and Snape with Doe are the emotional centre of the series.

The wolf Lupin preferred to hide

Remus Lupin's Patronus was a wolf, a painful form for a man who spent his life hiding that he was a werewolf. The official site says he often disguised his Patronus so it would not give him away, and Rowling writes that he feared his corporeal Patronus revealed too much. On the Lupin with Wolf figure the wolf rises right behind him.

Nymphadora Tonks continues the story. Her Patronus was a jack rabbit until she fell in love with Lupin, when it changed into a wolf. According to Rowling, a Patronus can change form after falling in love or after a bereavement.

Otter, terrier and hare

Hermione's otter looks like an odd choice for the most studious girl at Hogwarts, but the official site reads it as her carefree side, usually buried under schoolwork. It also points out that otters and weasels belong to the same family, the Mustelidae, and that Arthur Weasley's Patronus was a weasel, while saying plainly that it does not know whether the link to the Weasleys was intended.

Ron's Jack Russell terrier is a small dog that takes on far bigger enemies; the official site calls a dog Patronus a sure sign of a loyal friend, which fits a boy who kept risking himself for Harry and Hermione despite his jealousy and doubts.

Luna's hare is linked with the moon, and Luna is Latin for moon; the official site adds that her Patronus shows she is proud to be herself whatever anyone says.

Ginny Weasley's horse and Cho Chang's swan complete the younger generation. Both forms are confirmed on the official site, though neither is explained in as much detail.

Same animal, different people

Minerva McGonagall is an Animagus who becomes a tabby cat with spectacle-shaped markings round the eyes, and her Patronus is a cat too. In Deathly Hallows she casts three silver cats at once to warn the other Heads of House before the Battle of Hogwarts. Yet Dolores Umbridge also had a cat Patronus, and the two women could hardly be more different. Rowling notes that a rare few witches and wizards of questionable morals have managed the charm, Umbridge among them. The animal tells you something, but not whether the caster is good.

Why the rarest Patronus is not the strongest

Dumbledore with Phoenix stands out among the ten regular figures: Rowling writes that the most uncommon Patronuses of all are magical creatures such as dragons, Thestrals and phoenixes. His phoenix echoes Fawkes, his loyal companion.

A rare form does not mean a stronger one, though. Rowling's example is the legendary young wizard Illyius, who held off an attack from an army of Dementors single-handed with a mouse Patronus. What matters is the caster, not how impressive the animal looks.

The secret figure takes us back to the lake

The secret Expecto Patronum is the only piece without a witch or wizard: a stag Patronus stands against the dark shapes of Dementors. It brings back the lake in Prisoner of Azkaban, where Harry's first truly powerful corporeal Patronus saved himself, Hermione and Sirius.

The Patronuses are translucent; POP MART names an electronic component in its materials list, and an official photo has the whole set glowing blue, yet nowhere explains how the light turns on. It does not publish the secret odds either; the retailer toysez gives 1:120. The display box reads "10 designs / may have secret": a whole set is 10 boxes, and according to retailers a secret, if you get one, replaces a regular figure.

Price and where to find it

Official POP MART prices: $19.99 a box in the US ($199.90 for a whole set of 10), €15.00 in Europe and £14.00 in the UK; as of 15 November 2026 POP MART's European and UK shops showed it as sold out. Since every box is random, finishing the set usually means trading duplicates with other collectors. POP MART's other Harry Potter line on ColleX is Hirono × Harry Potter, with its own article.