There are 17 : Griphook : Verne Troyer -> Wawrick Davis Lavender Brown : Jennifer Smith -> Jessie Cave Elphias Doge : Peter Cartwright -> David Ryall Katie Bell : Emily Dale -> Georgina Leonidas
Tom
The Innkeeper : Derek Deadman -> Jim Tavare The Fat Lady : Elizabeth Spriggs
-> Dawn French Helena Ravenclaw :
Nina Young
-> Kelly Macdonald Pansy Parkinson : Genevieve Gaunt -> Scarlett Byrne Mafalda Hopkirk : Jessica Hynes -> Sophie Thompson Professor Dumbledore : Richard Harris -> Michael Gambon Voldemort : Richard Bremmer -> Ralph Fiennes
(this cost Voldemort his nose).
(Edit: it was a joke I heard, but after reading again the books, it appears that he was described as looking like a snake since GoF)
Angelina Johnson : Danielle Tabor -> Tiana Benjamin Padma
Patil :
Sharon Sandhu -> Afshan Azad Parvati Patil :
Sitara Shah
-> Shefali Chowdhury Alicia Spinnet : Leilah Sutherland
-> Rochelle Douglas Mr Granger :
Tom Knight ->
Ian Kelly Mrs Granger : Heather Bleasdale ->
Michelle Fairley Special section for young Tom Riddle actors :
11-year old : Hero Fiennes-Tiffin
16-year old : Frank Dillane 18-year old : Michael Berendt Young in CoS : Christian Coulson
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Some recast roles and the actors are: Infant Harry Potter : Saunders
Triplets Dumbledore :
Michael Gambon, Richard Harris Rubeus Hagrid :
Robbie Coltrane, Martin Bayfield (
young version, CoS)
Snape :
Alan Rickman, Alec Hopkins(OotP), Benedict Clarke(DH)
Lavender Brown :
Jennifer Smith(PoA), Jessie Cave Angelina Johnson : Danielle Tabor, Tiana Benjamin(GoF) Ernie Macmillan : Louis Doyle, Jamie Marks (DH)
Padma Patil :
Sharon Sandhu(PoA), Afshan Azad Parvati Patil : Sitara Shah(PoA), Shefali Chowdhury Alicia Spinnet : Leilah Sutherland(PS), Rochelle Douglas(CoS)
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Robert Pattinson appeared as Cedric Diggory, who was recast for GoF.
It doesn't look like the original actor for Cedric in PoA was identified.
I've not been able to find a credit for Cedric in PoA, in the film credits or on IMDb.
See his wiki page .
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Bill Weasley.
From http://harrypotter.wikia.com/wiki/William_Weasley#Behind_the_scenes :
Bill is portrayed by English actor Richard Fish in the film adaptation of Harry Potter and the Prisoner of Azkaban and Irish actor Domhnall Gleeson, son of Brendan Gleeson, in Harry Potter and the Deathly Hallows: Part 1 and Harry Potter and the Deathly Hallows: Part 2.
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The only one I know is Albus Dumbledore , played by: Richard Harris (films 1–2) Michael Gambon (films 3-8) Toby Regbo (playing the young Albus Dumbledore) source Wikipedia
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Which characters in the Harry Potter films have been recast? As the same character being played by two different actors in different films.  Which characters from the Harry Potter films have been recast?
Which characters have been recast in the Harry Potter films?
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<harry-potter><movie><actors>
scifi.stackexchange.com/questions/117835
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There are a number of characters in the Harry Potter films that have been recast. However, some notable examples include Dumbledore, who was played by Richard Harris, Michael Gambon and Toby Regbo, and Griphook, who was first played by Verne Troyer and then by Warwick Davis. There are many characters played by more than one actor - up to 17 by one count.
There are many characters played by more than one actor - up to 17 by one count. Extensive lists are provided but one exampke would be Albus Dumbledore , played by:   Richard Harris (films 1–2)  Michael Gambon (films 3-8)  Toby Regbo (playing the young Albus Dumbledore).