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Ernie Macmillan is one of the many protagonists of the Harry Potter series. He is a Hufflepufff student who fought to save Hogwarts and the rest of the wizarding world

In Harry Potter

Ernie Macmillan began attending Hogwarts in 1991 and was sorted into Hufflepuff, where he became friends with Hannah Abbott, Susan Bones and Justin Finch-Fletchley.

In 1992, he suspected that Harry Potter might be the heir of Slytherin, as he heard Harry speaking Parseltongue at the Duelling Club. He later realized that Harry was not the heir when he found out that Hermione Granger was petrified, as he knew that Harry would never harm his best friends, and gave a public apology to Harry.


In 1994, Ernie supported Cedric Diggory during the Triwizard Tournament as Cedric was from his house of Hufflepuff. He later believed in Harry that Voldemort had returned when Cedric Diggory was killed. Ernie joined Dumbledore's Army and was a great Hufflepuff member.

His support for Harry was so strong that he was with Dumbledore's Army when they participated in The Battle of Hogwarts in 1998 until Voldemort was killed. Ernie likely survived the war and his life after is unknown.

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           HarryPotter Heroes

Dumbledore's Army
Alicia Spinnet | Angelina Johnson | Anthony Goldstein | Katie Bell | Parvati Patil | Padma Patil | Michael Corner | Terry Boot | Cho Chang | Colin Creevey | Dean Thomas | Dennis Creevey | Ernie Macmillan | Fred Weasley | George Weasley | Ginevra Weasley | Harry Potter | Hannah Abbott | Hermione Granger | Justin Finch-Fletchley | Lavender Brown | Lee Jordan | Luna Lovegood | Neville Longbottom | Ron Weasley | Seamus Finnigan | Susan Bones

Order of the Phoenix
Alastor Moody | Albus Dumbledore | Arthur Weasley | Bill Weasley | Dobby | Fleur Delacour | Kingsley Shacklebolt | Lily Potter | Minerva McGonagall | Molly Weasley | Nymphadora Tonks | Remus Lupin | Rubeus Hagrid | Severus Snape | Sirius Black

Other Wizards & Witches
Cedric Diggory | Draco Malfoy | Filius Flitwick | Godric Gryffindor | Helga Hufflepuff | Rowena Ravenclaw | Gabrielle Delacour | Helena Ravenclaw | Isolt Sayre | Moaning Myrtle | Newt Scamander | Porpentina Goldstein | Oliver Wood | Percy Weasley | Rolanda Hooch | Viktor Krum

Muggles/No-Majs
Jacob Kowalski

Animals & Creatures
Aragog

Hogwarts School of Witchcraft and Wizardry
Gryffindor | Hufflepuff | Ravenclaw

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