Cassius Warrington

**Cassius Warrington** is the Pure-blood heir to House Warrington.

## Biography

### Family Lineage

Cassius is Heir to the Ancient and Noble House Warrington, a cadet branch of the Ancient and Noble House Selwyn. House Selwyn currently sits in the Wizengamot as a vassal of the Selwyns, led by Lord Antonius Warrington, Cassius's father. The Warringtons have a reputation of being blood purists, but were never publicly believed to be Death Eaters. Despite their purism House Warrington does apparently still have Muggle ancestry, as James Potter was claimed to have purer blood than the Warringtons and Bletchleys put together.

House Selwyn places a great deal of emphasis on familial relationships concerning it's cadet branches, and Cassius has been taught from a young age to always adress Lord Adramalech Selwyn as Grandfather, and to address Adramalech's siblings Merihem and Camilla Selwyn as Great-Uncle and Auntie, respectively.

Cassius's mother Juliana is a member of the French House of Bonnevie, and the Selwyns hoped to use Juliana's family connections to create a foothold for the family in France.

At some point before 1994 House Warrington gained ownership of the Montrose Magpies Quidditch team.

### Early Life

Cassius began attending Hogwarts in September of 1989, where he was sorted into Slytherin.

### Book 2 - The Secret Enemy

Cassius is spotted by Harry Potter socializing with Draco Malfoy, Adrian Pucey, and Miles and Kevin Bletchley. He later takes part in Quidditch tryouts, trying out for both Chaser and Seeker, alongside Harry Potter and Draco Malfoy. Cassius flinches when Harry mentions Voldemort's name, and warns him not to do it again. He also grows visibly frustrated at Harry's clear talent at Quidditch, and eventually loses out on both positions when Marcus Flint selects Harry and Draco for the team. After a disastrous pickup game against Gryffindor where Harry plays as Seeker and Draco as Chaser Cassius derides Harry and demands that he be given a place on the team, leading Harry to mock Cassius's intelligence for being unable to see that they are trying to trick the Gryffindors.

After his first test Gilderoy Lockhart places Cassius on Team Backdoor, though Lockhart later privately admits to George Weasley that Warrington only barely made it in because his father works in the Department of Magical Transportation.

After the Gryffindor-Slytherin Quidditch Match, where Harry Potter was struck in the head by a rogue bludger, Cassius expresses disinterest in Potter's injury and maintains that he would make a better Chaser. This leads his friend, Keeper Miles Bletchley, to criticize Cassius's pointless rivalry with Harry, and state that Cassius wouldn't have lasted thirty seconds against a rogue bludger. A fuming Cassius heads to the library to work on his assignment for Team Backdoor, where he receives George Weasley's portkey notes from a mysterious benefactor identifying himself only as "A Friend". Cassius uses these notes, and the instructions from his "Friend", to teleport the Quidditch team lockers to the Slytherin common rooms while the team is showering, forcing them to run from the pitch to the castle in freezing cold with only towels to protect them. The uses of George's rune schematics in the prank lead him to be blamed, but his brother Fred takes the blame and is suspended in his place. It is left unclear whether Cassius was aware that the true purpose of the prank was to kill Harry Potter in such a way that his brother Jim could be framed for it.

After the incident at the Dueling Club where Jim Potter was revealed to be a parselmouth Cassius begins planning a scheme to induct Jim into his group of friends. He blackmails Amy Wilkes into aiding him, promising to leave her and Ginny Weasley alone if she helps him trick Jim into thinking that he was attacked by a group of Gryffindors (actually Cassius and his friends, who threw a bag over Jim's head to keep him from recognizing them) and saved by Amy. Later, after the Christmas break, Cassius and his cousin Miranda Bonnevie break up a confrontation between Cormac McLaggen and Jim and Amy, offering Jim a place in their unofficial dueling club. Later that evening Amy uses her father's reputation to intimidate her way into full membership in Cassius's conspiracy.

During the Diary Horcrux's attack on Hogwarts Amy Wilkes confesses Cassius's plan to Harry and Jim. Harry uses this information to force Peregrine Derrick and Lucian Bole to confess to Snape, revealing to them that a blindfolded person's surroundings can still be seen in a Pensieve, which would reveal that they were the ones to assault Jim, as they did not wear masks. This leads to an interrogation of Cassius and Miranda by Professors Dumbledore, McGonagall, and Snape, with both Cassius and Miranda trying to paint the other as the true ringleader. After a conversation with their parents it is decided that Miranda, who Cassius revealed had cheated on her OWLs, illegally sold potions to other students, and blackmailed Selena Harper into declining the position of prefect, would be expelled, while Cassius would be suspended and forced to retake his Fourth Year.

### Book 3 - The Death Eater Menace

During his first Wizengamot session, Draco Malfoy explains to Harry that the Warringtons are a Vassal House of the Selwyns that started as a cadet branches of House before being raised to Noble Status. After the session Cassius, his parents, and his cousin Miranda attend a Selwyn family meeting. Cassius complains loudly before they leave, as he had already made plans to spend the weekend with Miles Bletchley, but he is shocked into submission when his father slaps him for the first time in his life. He is even more shocked when he realises his father's slap was motivated by fear rather than anger.

It is revealed to Cassius that Miranda's expulsion had strained relationships between the Bonnevie's and House Warrington (and House Selwyn by extension). When Miranda is told that Lord Adramalech Selwyn has summoned her, and Cassius angrily demands that he be given an audience in her stead. Cassilda Selwyn reacts incredulously to the revelation that Cassius has no knowledge of the true nature of House Selwyn, and allows his mother Juliana to go in his stead after a plea from her. Juliana returns from the meeting with pale skin, glassy and unfocused eyes, and thick bandages around her right arm, and spends the next two days bedridden and unable to speak. Once Juliana has recovered Cassius is summoned by his parents, who make him swear an Unbreakable Vow and reveal the truth about House Selwyn.

After Theodore Nott is expelled from House Nott through the Ultimate Sanction Cassius joins the mob accosting Theo on Platform 9¾ and becomes a founding member of the Hogwarts Cultural Preservation Society (CPS), and quickly becomes on of the unofficial leaders of the club. Cassius is noticeably pale and nervous during the sorting of his cousins, Flora and Hestia Carrow. Like the previous year, Cassius goes to the Quidditch tryouts, but he is once again passed over, with Ginny Weasley becoming Seeker instead. Cassius loudly complains about the current state of Slytherin House, claiming that with Half-bloods and blood traitors on the team it wouldn't be long before they were joined by Muggle-borns, but he is quickly silenced by a knee to the groin courtesy of Millicent Bulstrode.

Later in the year, Cassius organises a prank by the CPS on the Society for the Prevention of Abusive Magic (SPAM), sending them a cake laced with a potion that would make them refer to each other by blood-based slurs, but Cedric Diggory and Cho Chang are caught by Head Boy Bobby Lattimer as they plant the cake.

After the final Quidditch Match of the year, which sees Slytherin win the cup with a penalty shot, causing Oliver Wood to not only lose out on his last chance to win the Quidditch cup, but also most likely his dream job of playing for Puddlemere United, Cassius approaches him, offering him a place as reserve keeper for the Montrose Magpies.

### Book 4 - The Resurrection Game

Cassius attends the Quidditch World Cup alongside his parents and their personal guest Oliver Wood. He is overheard deriding the Holyhead Harpies, claiming them to be "alright for a bunch of girls", but he is once again silenced by a threat from Millicent Bulstrode. Later that summer House Warrington is raised from a Noble House to an Ancient and Noble House in the Wizengamot, with the Selwyns gathering votes for the promotion by promising to sponsor the ascension of House Abbott to the Wizengamot as a Noble House.

After returning to Hogwarts for the new school year Cassius approaches Harry Black alongside the Carrow twins, apologizing for his previous conduct towards Harry and Theo No-Name, and invites them to attend a CPS meeting. Harry, Blaise, and Theo decide to use this invitation to join the CPS and stage a "soft coup", steering the organisation away from Pure-blood bigotry.

## Physical Description

Tracey Davis claims that Cassius is considered quite handsome, but that he isn't considered very eligible due to his personality.

## Personality & Traits

Despite being placed in House Slytherin, Cassius is not known for his cunning, to the point where Harry Potter declares him not to be a real Slytherin when he is unable to see why the Slytherin Quidditch Team would purposefully lose a practice game against the Gryffindors. Amy Wilkes also mocks him for believing himself to he an "evil mastermind" at age fourteen, and both her and Harry deem his plan to "corrupt" Jim to be idiotic. Cassius does have some degree of self-awareness of this, as he himself admits that he isn't the most astute of Slytherins.

Cassius does not speak French and had not taken a language potion to learn it, as he did not know the English translation of Cauchemar.

Despite this, he still took up a leadership position among his peers, and he is described several times to be "holding court" over his circle of Pure-blood friends and associates.

## Magical Abilities & Skills

Regulus Black believed Cassius to have more knowledge of Portkeys than the average Hogwarts student due to his father's employment in the Department of Magical Transportation.

## Canon Divergence

In Canon Warrington is only referred to a few times a an older Slytherin student who joined the Slytherin Quidditch Team and the Inquisitorial Squad. His first name is not mentioned in the books, and is only found in promotional material for the movies.

In Prince of Slytherin Cassius tries (with varying levels of success) to set himself up as Harry's main rival in Slytherin House, and can be seen as a replacement for Canon Draco, who becomes more friendly towards Harry from the second book onward.

## References

Book 3 - HP&DEM - Ch. 90 - Reactions & Overreactions (Pt 1),

Draco explains why the Selwyns have thirty-two votes.
Book 2 - HP&TSE - Ch. 45 - The Ice Cream Conference,

"[The Warringtons and Bletchleys] are blood purists, though I don't think any of them ever formally became Death Eaters.".
Book 2 - HP&TSE - Ch. 61 - Post-Game Developments,

Cassius gets into an argument with Bletchley about Harry Potter.
Book 3 - HP&DEM - Ch. 93 - Reactions & Overreactions (Pt 4),

The Warringtons attend the Selwyn family dinner.
Book 3 - HP&DEM - Ch. 138 - The Future All Around Us, Waiting to Be Born (Pt 2),

Cassius approaches Oliver with a job offer.
Book 2 - HP&TSE - Ch. 78 - The Riddle of the Diary,

"Lord Malfoy, this is Cassius Warrignton[sic], a Fourth Year student.".
Book 2 - HP&TSE - Ch. 45 - The Ice Cream Conference,

"Harry glanced over at Draco who was sitting some distance away next to Warrington, Pucey and the Bletchley Brothers.".
Book 2 - HP&TSE - Ch. 51 - Team-Building Exercises (Pt 1),

Cassius goes to the Quidditch Tryouts.
Book 2 - HP&TSE - Ch. 51 - Team-Building Exercises (Pt 1),

"There were several other older Slytherins named who were not a part of his circle, most notably Warrington, who was on Team Backdoor.".
Book 2 - HP&TSE - Ch. 53 - Team-Building Exercises (Pt 3),

"Your peer Mr. Warrington barely snuck in because his father works in the Department of Magical Transportation and so Warrington is more familiar with the Portkey procedures than the average student.".
Book 2 - HP&TSE - Ch. 61 - Post-Game Developments,

The Heir of Slytherin contacts Cassius.
Book 2 - HP&TSE - Ch. 63 - Escalation of Hostilities,

The Slytherin Quidditch Team is pranked.
Book 2 - HP&TSE - Ch. 65 - Aftershocks,

Fred takes the fall for the locker room prank.
Book 2 - HP&TSE - Ch. 72 - Slouching Towards Endgame (Pt 2),

The Diary Horcrux muses on his plans.
Book 2 - HP&TSE - Ch. 64 - The Duelling Club,

Jim speaks Parseltongue at the Dueling Club.
Book 2 - HP&TSE - Ch. 65 - Aftershocks,

Cassius and his friends attack Jim.
Book 2 - HP&TSE - Ch. 68 - A New Year Begins,

Cassius and Miranda save Jim, and Amy puts her reputation to use.
Book 2 - HP&TSE - Ch. 76 - Revelations in a Disused Lavatory,

Amy and Ginny reveals Cassius's plan.
Book 2 - HP&TSE - Ch. 81 - The Power of Friendship,

Harry forces Derrick and Bole to confess.
Book 3 - HP&DEM - Ch. 90 - Reactions & Overreactions (Pt 1),

Harry goes to his first Wizengamot Session.
Book 3 - HP&DEM - Ch. 96 - Back to School (Finale),

A mob forms around Theo on Platform 9¾.
Book 3 - HP&DEM - Ch. 99 - Feasts, Electives & Student Organizations (Conclusion),

The CPS holds their first meeting.
Book 3 - HP&DEM - Ch. 97 - Feasts, Electives & Student Organizations (Pt 1),

"[Harry] glanced over towards Cassius Warrington, the only other current student affiliated with House Selwyn and noticed that the boy seemed pale and nervous as he watched his cousins' Sortings. ".
Book 3 - HP&DEM - Ch. 100 - The Persistence of Memory,

"Ginny Weasley decisively claimed the Seeker's position, handily beating out the fuming Cassius Warrington and the other contenders.".
Book 3 - HP&DEM - Ch. 122 - The Hunting of Sirius Black (Pt 1),

"Once around the corner, [Pansy] grabbed Cassius Warrington by the arm. 'Tonight!' she hissed. 'We're doing it tonight!'".
Book 3 - HP&DEM - Ch. 122 - The Hunting of Sirius Black (Pt 1),

SPAM is pranked by the CPS, forcing Harry to spend the night in the infirmary and costing House Parkinson 20,000 Galleons.
Book 3 - HP&DEM - Ch. 127 - Redux (Pt 1),

Cedric and Cho are caught trying to prank the SPAM meeting.
Book 4 - HP&TRG - Ch. 140 - Marseilles, With an S,

Cassius attends the Quidditch World Cup.
Book 4 - HP&TRG - Chapter not added yet,

"Wizengamot Welcomes Two New Families: Noble House of Abbott and Ancient and Noble House of Warrington".
Book 4 - HP&TRG - Chapter not added yet,

Cassius seemingly makes peace with Harry.
Book 4 - HP&TRG - Ch. 140 - Marseilles, With an S,

Harry and Tracey briefly discuss Cassius.