Cast of HBO's Harry Potter: A Comprehensive Guide

Dominic McLaughlin as Harry Potter
Alastair Stout as Ron Weasley
Arabella Stanton as Hermione Granger

John Lithgow as Albus Dumbledore
Janet McTeer as Minerva McGonagall
Paapa Essiedu as Severus Snape
Nick Frost as Rubeus Hagrid
Luke Thallon as Quirinus Quirrell
Paul Whitehouse as Argus Filch
Louise Brealey as Rolanda Hooch
Warwick Davis as Filius Flitwick
Sirine Saba as Pomona Sprout
Richard as Durded Cuthbert Binns
Bríd Brennan as Poppy Pomfrey

Lox Pratt as Draco Malfoy
Leo Early as Seamus Finnigan
Alessia Leoni as Parvati Patil
Sienna Moosah as Lavender Brown
Rory Wilmot as Neville Longbottom
Elijah Oshin as Dean Thomas
Finn Stephens as Vincent Crabbe
William Nash as Gregory Goyle

Bel Powley as Petunia Dursley
Daniel Rigby as Vernon Dursley
Amos Kitson as Dudley Dursley

Katherine Parkinson as Molly Weasley
Tristan Harland as Fred Weasley
Gabriel Harland as George Weasley
Ruari Spooner as Percy Weasley
Gracie Cochrane as Ginny Weasley

Bertie Carvel as Cornelius Fudge
Anton Lesser as Garrick Ollivander
Johnny Flynn as Lucius Malfoy
Leigh Gill as Griphook
Mickey McAnulty as Piers Polkiss
Lambert Wilson as Nicolas Flamel
Marthe Keller as Perenelle Flamel
Peter Serafinowicz as Peeves the Poltergeist
Naomi Wirthner as Madame Malkin
Jake Curran as Ronan the Centaur

Eire Farrell as Katie Bell
Asha Soetan as Angelina Johnson
Orson Matthews as Oliver Wood
Serrana Su-Ling Bliss as Alicia Spinnet
Ethan Smith as Lee Jordan

India Moon as Hannah Abbott
Jazmyn Lewin as Susan Bones
Cian Eagle-Service as Ernie MacMillan
James Trevelyan Buckle as Justin Finch-Fletchley

Aaron Zhao as Terry Boot
Eve Walls as Lisa Turpin
Scarlett Archer as Penelope Clearwater
Anjula Murali as Padma Patil

Eddison Burch as Miles Bletchley
James Dowell as Lucian Bole
Oliver Croft as Macus Flint
Dylan Health as Adrian Pucey
Henry Medhurst as Peregrine Derrick
Cornelius Brandreth as Terence Higgs
Laila Barwick as Pansy Parkinson
D’Angelou Osei-Kissiedu as Graham Montague