Muggles' Guide to Harry Potter/Characters/Justin Finch-Fletchley

Overview
Justin Finch-Fletchley is a student in Harry's year at Hogwarts, but is a member of Hufflepuff house, where Harry is in Gryffindor.

Philosopher's Stone
The Sorting Hat places Justin Finch-Fletchley into Hufflepuff House.

Chamber of Secrets
Introduced to Harry in Herbology on the first day of classes, Justin Finch-Fletchley makes no secret of his Muggle parentage in discussions with Harry. He is threatened by a snake during the Duelling Club, and as Harry was talking to the snake at that point, trying to calm it so it wouldn't strike Justin, it appeared to Justin as though Harry was actually egging the snake on. The Hufflepuffs become convinced that Harry is planning mischief against Justin in particular; when Harry goes to find Justin to explain what had happened, he finds that Justin has been Petrified by the monster in the Chamber.

When Justin is revived, he makes a point of coming over to Harry at the feast, and apologizing profusely for ever having suspected Harry.

Goblet of Fire
When Harry's name comes out of the Goblet of Fire, Justin Finch-Fletchley, like the rest of his house, thinks Harry cheated his way in, and starts acting cold towards. In one Herbology lesson, he and his friend Ernie MacMillan don't speak to Harry at all, and then laugh at him when a Bouncing Blub smacks Harry in the face.

Order of the Phoenix
Justin Finch-Fletchley is one of the original members of Dumbledore's Army, and is present at the first meeting in the Hog's Head. We see him occasionally in passing in DA meetings. During the first one, he's paired with Luna Lovegood, who keeps sending his wand spinning out of his hand or causing his hair to stand on ends.

Justin is also one of the six members of Dumbledore's Army who see Draco Malfoy attempting to jinx Harry on the Hogwarts Express, and promptly return fire, leaving Draco, Crabbe, and Goyle looking like gigantic slugs squeezed into Hogwarts robes.

Strengths
Justin Finch-Fletchley mentions that he was accepted to attend Eton College, a very exclusive and prestigious Muggle boys school. This would imply that Justin is intelligent, has an outstanding academic record and is possibly from a wealthy and well connected Muggle family. In 2008 the tuition at Eton was £26,490 (approximately US$54,000) per annum.

Weaknesses
Justin seems to be quick to jump to conclusions (as proved by his suspicion of Harry following the Duelling Club incident).

Relationships with Other Characters
Justin is shown to be good friends with Ernie MacMillan.