Fatuosity

They use this cast list taken from Wikipedia http://en.wikipedia.org/wiki/List_of_Harry_Potter_cast_members

Here are their lists

http://theatre.revstan.com/2011/07/why-harry-potter-reignited-my-love-of-the-...

http://earlhamstreetgutter.blogspot.com/2011/07/harry-potter-cast-members-see...

@nick370 has added his list to the mix http://nick730.blogspot.co.uk/2013/03/potter-spotter.html#more

And here is mine.

 

01 - Daniel Radcliffe  -  Harry Potter  -  Equus
02 - Rupert Grint  -  Ron Weasley  -  Mojo (2013)
03 - Carolyn Pickles  -  Charity Burbage  -  Fram
04 - Alfred Burke  -  Armando Dippet  -  Oedipus (2008)
05 - Richard Harris  -  Albus Dumbledore  -  Henry IV (Pirandello)
06 - Michael Gambon  -  Albus Dumbledore  -  No Man's Land
07 - David Bradley  -  Argus Filch  -  No Man's Land
08 - Warwick Davis  -  Filius Flitwick  -  See How They Run (2014)
09 - Zoë Wanamaker  -  Rolanda Hooch  -  All My Sons (2010)
10 - Kenneth Branagh  -  Gilderoy Lockhart  -  Ivanov
11 - Maggie Smith  -  Minerva McGonagall  -  The Lady in the Van
12 - Sally Mortemore  -  Irma Pince  -  Lady of Pleasure

13 - Gemma Jones  -  Poppy Pomfrey  -  Cat on a Hot Tin Roof (2001)
14 - Ian Hart  -  Quirinus Quirrell  -  Homecoming (2001)
15 - Jim Broadbent  -  Horace Slughorn  -  Pillowman
16 - Alan Rickman  -  Severus Snape  -  Private Lives (2001)
17 - Miriam Margolyes  -  Pomona Sprout  -  Dickens' Women
18 - Georgina Leonidas  -  Katie Bell  -  Agatha Christie's Black Coffee (2014)
19 - Jessie Cave  -  Lavender Brown  -  Arcadia
20 - Katie Leung  -  Cho Chang  -  The World of Extreme Happiness
21 - Hugh Mitchell  -  Colin Creevey  -  Arcadia (2009)
22 - Henry Lloyd-Hughes  -  Roger Davies  -  Posh
23 - Isabella Laughland  -  Leanne  -  Greenland
24 - Matthew Lewis  -  Neville Longbottom  -  Our Boys (2012)
25 - Genevieve Gaunt  -  Pansy Parkinson  -  French Without Tears (2015)
26 - Alfred Enoch  -  Dean Thomas  -  Antigone (2012)
27 - Bonnie Wright  -  Ginny Weasley  -  Moment of Truth
28 - Sean Biggerstaff  -  Oliver Wood  -  Girl with Red Hair (2005)
29 - David Brett  -  Dedalus Diggle  -  Outward Bound (2012)
30 - David Ryall  -  Elphias Doge  -  Democracy (2003)
31 - Ciarán Hinds  -  Aberforth Dumbledore  -  Burnt by the Sun
32 - Kathryn Hunter  -  Arabella Figg  -  Kafka's Monkey
33 - David Thewlis  -  Remus Lupin  -  Icecream (1989)
34 - Brendan Gleeson  -  Alastor Moody  -  Saint Oscar (1990)
35 - Adrian Rawlins  -  James Potter  -  Dinner (2002)
36 - Robbie Jarvis  -  James Potter(y)  -  Shivered (2012)
37 - Geraldine Somerville  -  Lily Potter  -  Blue Remembered Hills (1998)
38 - George Harris  -  Kingsley Shacklebolt  -  Frankenstein
39 - Natalia Tena  -  Nymphadora Tonks  -  The Clean House
40 - Mark Williams  -  Arthur Weasley  -  Toast
41 - Domhnall Gleeson  -  Bill Weasley  -  Now or Later (2008)
42 - Julie Walters  -  Molly Weasley  -  All My Sons (2000)
43 - Richard Bremmer  -  Lord Voldemort(y)  -  Henry V (2000)
44 - Christian Coulson  -  Lord Voldemort(y)  -  Journey's End (2004)
45 - Ralph Fiennes  -  Lord Voldemort  -  Coriolanus (2000)
46 - Suzie Toase  -  Alecto Carrow  -  One Man Two Guvnors
47 - Ralph Ineson  -  Amycus Carrow  -  Hangmen (2015)
48 - David Tennant  -  Barty Crouch Jr  -  Much Ado About Nothing
49 - Jason Isaacs  -  Lucius Malfoy  -  Dumb Waiter
50 - Helen McCrory  -  Narcissa Malfoy  -  Rosmersholm
51 - Timothy Spall  -  Peter Pettigrew  -  The Caretaker (2016)
52 - Nick Moran  -  Scabior  -  Real Classy Affair (1998)
53 - Sian Thomas  -  Amelia Bones  -  Fram
54 - Kate Fleetwood  -  Mary Cattermole  -  Macbeth (2007)
55 - Steffan Rhodri  -  Reg Cattermole  -  Abigail's Party (2002)
56 - Roger Lloyd-Pack  -  Barty Crouch Sr  -  When we are married (1996)
57 - Richard Leaf  -  John Dawlish  -  Not About Nightingales (1996)
58 - Jeff Rawle  -  Amos Diggory  -  Fram
59 - Robert Hardy  -  Cornelius Fudge  -  The Audience (2013)
60 - Jessica Hynes  -  Mafalda Hopkirk(v)  -  Night Heron
61 - Sophie Thompson  -  Mafalda Hopkirk  -  Clybourne Park
62 - Bill Nighy  -  Rufus Scrimgeour  -  Blue/Orange
63 - Guy Henry  -  Pius Thicknesse  -  Twelfth Night (2001)
64 - Imelda Staunton  -  Dolores Umbridge  -  A Delicate Balance
65 - Eric Sykes  -  Frank Bryce  -  Three Sisters (2003)
66 - Amelda Brown  -  Mrs. Cole  -  My Heart's a Suitcase
67 - Harry Melling  -  Dudley Dursley  -  A School for Scandal
68 - Pam Ferris  -  Marge Dursley  -  Notes on Falling Leaves (2004)
69 - Fiona Shaw  -  Petunia Dursley  -  London Assurance
70 - Richard Griffiths  -  Vernon Dursley  -  History Boys
71 - Ian Kelly  -  Mr. Granger  -  A Busy Day (2000)
72 - Michelle Fairley  -  Mrs. Granger  -  Dancing at Lughnasa
73 - Jim Norton  -  Mr. Mason  -  The Seafarer
74 - Veronica Clifford  -  Mrs. Mason  -  Paper Husband (1997)
75 - Michael Byrne  -  Gellert Grindelwald  -  Kafka's Dick (1998)
76 - Frances de la Tour  -  Olympe Maxime  -  Dance of Death (2003)
77 - Sam Beazley  -  Everard  -  His Girl Friday
78 - Dawn French  -  The Fat Lady  -  When We Are Married (1996)
79 - Kelly Macdonald  -  The Grey Lady  -  Hurlyburly
80 - Shirley Henderson  -  Moaning Myrtle  -  Shining Souls (1997)
81 - John Atterbury  -  Phineas Nigellus Black  -  Ivanov (2008)
82 - Leslie Phillips  -  Sorting Hat(v)  -  Camino Real
83 - Margery Mason  -  Food Trolley Lady  -  Three Sisters (2003)
84 - Rhys Ifans  -  Xenophilius Lovegood  -  Accidental Death of an Anarchist
85 - John Hurt  -  Mr Ollivander  -  Afterplay
86 - Jimmy Gardner  -  Ernie Prang  -  Julius Caesar (1999)
87 - Julie Christie  -  Madam Rosmerta  -  Old Time (1995)
88 - Lee Ingleby  -  Stan Shunpike  -  Timon of Athens (2000)
89 - Miranda Richardson  -  Rita Skeeter  -  The Changeling (1988)
90 - Derek Deadman  -  Tom the barman  -  A Midsummer Night's Dream (1996)
91 - Paul Ritter  -  Eldred Worple  -  Norman Conquests
92 - Julian Glover  -  Aragog(v)  -  Macbeth (2002)
93 - Toby Jones  -  Dobby(v)  -  The Play What I Wrote
94 - Ray Fearon  -  Firenze(v)  -  World Music (2004)
95 - Tony Maudsley  -  Grawp  -  Anniversary (2005)
96 - Warwick Davis  -  Griphook  -  See How They Run (2014)
97 - Timothy Bateson  -  Kreacher(v)  -  Absolutely! (Perhaps) (2003)
98 - Simon McBurney  -  Kreacher(v)  -  The Caucasian Chalk Circle
99 - Michael Wildman  -  Magorian  -  Hamlet (2000)
100 - Lenny Henry  -  Shrunken Head(v)  -  Othello

 

It isn't complete though