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Hermione (as Mafalda Hopkirk): "Oh dear! Perhaps you'd better take the day off!"
Reginald: "No – no! I must – today – must go – "
Hermione (as Mafalda Hopkirk): "But that's just silly! You can't go to work in this state – I think you ought to go to St Mungo's and get them to sort you out... You simply can't go to work like this!"
— Reginald trying to get to the Ministry of Magic for his wife's trial[src]

Reginald "Reg" Cattermole (b. sun in Libra, moon in Virgo[1]) was a British wizard employed at the Ministry of Magic in the Magical Maintenance Department.[3] He was married to Mary, and the couple had three children, Maisie, Ellie, and Alfred. He lived at 27 Chislehurst Gardens, Great Tolling, Evesham with his wife and children.[7]


Early Life

Reginald, Jacob's sibling and Ben Copper observing the cursed enchanted windows

Presumably educated at Hogwarts School of Witchcraft and Wizardry during his formative years like most magical children,[8] while little is known about Reginald's early life, at some point following his seventeenth birthday, he joined the British Ministry of Magic as part of the Magical Maintenance Department. In this position, he took part in the maintenance of the Ministry headquarters, which included mopping the floors.[9] Absent-minded to a fault and typically content minding his own business, Reginald was not above admitting that he often found himself unaware of what was going on at the Ministry at large.[9]

During the 1990–1991 school year, Reginald and his colleagues became aware of how the enchanted windows at the Ministry was displaying nothing but hurricane, a condition that had not been imposed on them since his Department were angling for a pay rise sometime earlier. Realising something must have gone awry with the Weather-Modifying Charms they had been treated with, Reginald, along with at least some of his colleagues, went to the the Ministry All-Purpose Room where the "master window" was located to try and rectify the situation, to no avail. Having tried every spell they could think of to undo the storm, in the end, only Reginald was left once the others had given up. As he stood contemplating the windows in question, two visiting students joined him and, examining the enchanted windows themselves, was able to ascertain that the windows had been cursed; explaining why their conventional counter-spells did not work on them. This discovery, however, was not sufficient to discover the identity of the culprit.[9]

Infiltration of the Ministry

"You realise that I am on my way downstairs to interrogate your wife, Cattermole? In fact, I'm quite surprised you're not down there holding her hand while she waits. Already given her up as a bad job, have you? Probably wise. Be sure and marry a pure-blood next time... But if my wife were accused of being a Mudblood — not that any woman I married would ever be mistaken for such filth — and the Head of Department of Magical Law Enforcement needed a job doing, I would make it my priority to do this job, Cattermole. Do you understand me?"
Yaxley intimidating Reginald (actually Ron Weasley in disguise)[src]

Ron (far right) disguised as Reginald Cattermole with Hermione and Harry (also disguised as Ministry workers)

On 2 September, 1997, Reginald headed for the Ministry not just for work, but for his Muggle-born wife Mary Cattermole who was to be tried by the Muggle-Born Registration Commission, as the Ministry had been taken over by Death Eaters and Muggle-borns were being persecuted. Outside, Reginald met Mafalda Hopkirk, who was actually Hermione Granger disguised by use of Polyjuice Potion.[3]

She gave him a Puking Pastille, and when he started to vomit, she took some of his hair. Reginald still tried hard to get into the Ministry, desperate to be by his wife's side, despite repeatedly vomiting and being unable to walk straight, but Hermione advised him to go to St Mungo's. After being unable to stand any longer, he finally Disapparated.[3]

Reginald (Ron in disguise with Polyjuice Potion) exiting the lift to deal with the raining in Yaxley's office

This was all part of Hermione Granger, Harry Potter, and Ron Weasley's plan to access the Ministry undercover. Hermione transformed into Mafalda Hopkirk, Ron used Reginald's hair and Polyjuice Potion to take on his form, and after Harry took on the form of Albert Runcorn, the three headed into the Ministry.[3]

Reginald returned to the Ministry, pale but no longer ill, just in time to witness Ron, Harry, and Hermione assisting in the escape of Muggle-borns who had been detained by the Muggle-Born Registration Commission, including his wife. Harry advised them to take their children and leave the country while Lord Voldemort was still in power.[5]

Later life

It is unknown if Reginald and Mary took Harry's advice, or what happened to them after the Second Wizarding War ended. However, Ron was dubious they escaped as he got the impression Reginald was not quick-witted when he impersonated him.[10]

Physical description

Reginald was described as being a small, "ferretty" individual.[3]

Magical abilities and skills

  • Apparition: Like most accomplished adult wizards, Reginald was capable of apparating at will.[3]
  • Charms: Reginald was capable of producing a non-corporeal Patronus,[6] a highly advanced and powerful protective charm.

Behind the scenes

Ron Weasley as Reg in LEGO Harry Potter: Years 5-7


"Reginald" is from Reginaldus, which is a Latinized form of Reynold. It is also a cognate with the Old Norse Rögnvaldr, from which the name Ronald is derived.


The Harry Potter Wiki has 8 images related to Reginald Cattermole.

Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 1.5 Harry Potter Limited Edition - A Guide to the Graphic Arts Department: Posters, Prints, and Publications from the Harry Potter Films
  2. As only his wife was on trial, and not him, he must have been at least half-blood, possibly pure blood.
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 Harry Potter and the Deathly Hallows, Chapter 12 (Magic is Might)
  4. 4.0 4.1 Harry Potter: Hogwarts Mystery, Year 7, Chapter 7 (A New Curse)
  5. 5.0 5.1 5.2 Harry Potter and the Deathly Hallows, Chapter 13 (The Muggle-Born Registration Commission)
  6. 6.0 6.1 LEGO Harry Potter: Years 5-7
  7. Harry Potter and the Deathly Hallows: Part 1 - Chapter 13 (Lifting the Locket)
  8. Harry Potter and the Deathly Hallows, Chapter 11 (The Bribe) - "Attendance is now compulsory for every young witch and wizard,” he replied. “That was announced yesterday. It’s a change, because it was never obligatory before. Of course, nearly every witch and wizard in Britain has been educated at Hogwarts, but their parents had the right to teach them at home or send them abroad if they preferred." - Remus Lupin talks about Hogwarts after Voldemort's takeover.
  9. 9.0 9.1 9.2 Harry Potter: Hogwarts Mystery, Year 7, Chapter 6 (A Window of Opportunity)
  10. Harry Potter and the Deathly Hallows, Chapter 14 (The Thief)
Ministry of Magic Departments
Unknown Levels
Archives · Committee on Experimental Charms · Department of Magical Artefacts · Department of Magical Education · Exploding Bonbons Disposal Unit · Magical Maintenance Department · Office for the Removal of Curses, Jinxes, and Hexes · Public Information Services · Remittance Office · Research Committee · Very Important Members of Section M.I. Trx. · Wizarding Examinations Authority
Committee on Experimental Charms Personnel
Balfour Blane · Gilbert Wimple
Department of Magical Artefacts Personnel
Sage Bragnam (Head Curator)
Magical Maintenance Department Personnel
Reginald Cattermole · Orford Umbridge · Lift attendant · Man
Research Committee Personnel
Phoebus Penrose (Head)
Wizarding Examinations Authority Personnel
Griselda Marchbanks · Professor Tofty · Unidentified plump little witch examiner · Unidentified examiner with a wart on his nose