Parte veia:

Fleur Delacour é parte-veela, sua avó era uma.

“An ’air from ze ’ead of a Veela,’ said Fleur. ‘One of my grandmuzzer’s.’ So Fleur was part Veela, thought Harry, making a mental note to tell Ron … then he remembered that Ron wasn’t speaking to him.”
_{^{- Harry Potter and the Goblet of Fire, Chapter 18 (The Weighing of the Wands)}}

Parte gigante:

Hagrid é meio-gigante, sua mãe era uma giganta e seu pai era um bruxo.

“And now he saw the vast outline of Hagrid, illuminated by the light of the crescent moon revealed suddenly from behind clouds; the blond Death Eater was aiming curse after curse at the gamekeeper, but Hagrid’s immense strength, and the toughened skin he had inherited from his giantess mother, seemed to be protecting him; Snape and Malfoy, however, were still running; they would soon be beyond the gates, able to Disapparate –”
_{^{- Harry Potter and the Half-Blood Prince, Chapter 28 (The Flight of the Prince)}}

Apesar de negar, Madame Maxime também é meio giganta.

Headmistress Olympe Maxime is (in spite of her protestations to the contrary) half-giantess; brilliant, elegant and undeniably awe-inspiring.
_{^{- Beauxbatons Academy of Magic (Pottermore)}}

Parte-goblin:

No F.A.Q. de J.K. Antigo site de Rowling, ela confirma que o professor Flitwick tem um ancestral distante dos goblins, confirmando que os bruxos goblin são possíveis.

Just like Dean Thomas (see ‘Extras’), Flitwick has a background that I now realise will never see its way into the books because it is not relevant to the plot. He is human but with a dash of goblin ancestry – something like a great, great, great grandfather. This is only interesting in as much as it gives him a perhaps unexpected empathy for people like Hagrid who are, in Death Eater parlance, half-breeds. However, Flitwick and Hagrid have never had a scene together, so Flitwick’s genetic composition has been relegated to the very back of my mind over the six novels in which he features, although I think it has informed his character. Slightly dotty though he may be, he is welcoming of all students, whatever their background (he did say in ‘Philosopher’s Stone’ that he was very fond of Lily, thus establishing that he was not prejudiced against Muggle-borns).
_{^{- Is Flitwick a short human or is he some other type of being? (F.A.Q. on J.K. Rowling’s website)}}

Half-trolls, meio-elfos e meio-goblins:

O Circus Arcanus tem vários seres-parte trabalhando como loucos em seu show de aberrações. Não está claro se eles são parte- humanos especificamente, mas eles são mestiços alguns .

TINA walks past the street performers working in the open, scrutinizing them. A HALF-TROLL performs feats of strength. A few misshapen and particularly downtrodden humanoids—UNDERBEINGS without powers but of magical ancestry—shuffle around, taking money from the crowd. Horns hidden beneath hats, unusual eyes beneath hoods; HALF-ELVES and HALF-GOBLINS juggle and tumble.
_{^{- Fantastic Beasts: The Crimes of Grindelwald (The Original Screenplay)}}

Part-troll (embora isso seja provavelmente uma piada)

“They weren’t the brightest. One of them was definitely part troll, the smell off him …’

Ron glanced at Hermione, clearly hopeful she might soften at this small instance of humour, but her expression remained stony above her tightly knotted limbs.”
_{^{- Harry Potter and the Deathly Hallows, Chapter 19 (The Silver Doe)}}

Harry também sugere que Marcus Flint pode ser parte-troll, mas novamente isso parece apenas um insulto.

“Harry noticed that she seemed to be speaking particularly to the Slytherin captain, Marcus Flint, a fifth-year. Harry thought Flint looked as if he had some troll blood in him.”
_{^{- Harry Potter and the Philosopher's Stone, Chapter 11 (Quidditch)}}

Parte-vampiro:

O Assistente do Mês de Novembro de 2006 em J.K. O site oficial de Rowling era Lorcan d'Eath, um vampiro em parte que era um cantor popular no mundo dos bruxos.

Part-elf (implícito quanto possível no Pottermore)

Speaking of eccentrics, you’ll like our Head of house, Professor Filius Flitwick. People often underestimate him, because he’s really tiny (we think he’s part elf, but we’ve never been rude enough to ask) and he’s got a squeaky voice, but he’s the best and most knowledgeable Charms master alive in the world today.

No entanto, assistentes de part-merperson ou de fada parcial não são mencionados.

Fadas em Harry Potter são pequenas criaturas não-inteligentes e, além disso, se reproduzem colocando ovos.

“The fairy lays up to fifty eggs at a time on the underside of leaves. The eggs hatch into brightly coloured larvae. At the age of six to ten days these spin themselves a cocoon, from which they emerge one month later as fully formed winged adults.”
_{^{- Fantastic Beasts and Where to Find Them}}

Embora eles sejam mais inteligentes e fisicamente mais próximos em tamanho aos bruxos, não há implicação de que as pessoas sejam geneticamente compatíveis com os bruxos, e nem todos os magos a quem se refere a palavra-mãe são mencionados.

“Merpeople exist throughout the world, though they vary in appearance almost as much as humans. Their habits and customs remain as mysterious as those of the centaur, though those wizards who have mastered the language of Mermish speak of highly organised communities varying in size according to habitat, and some have elaborately constructed dwellings.”
_{^{- Fantastic Beasts and Where to Find Them}}

É improvável que fadas ou sereias possam se reproduzir com assistentes.