je remet la liste du casting d'harry potter et l'ordre du phoenix MAJ :
| Actor | Character | Confirmation Info |
| Daniel Radcliffe | Harry Potter | Interview |
| Ralph Fiennes | Lord Voldemort | Interview |
| Emma Watson | Hermione Granger | Interview Although few doubted Emma's return for the fifth film, she first publicly stated that she'd be coming back for it in an interview with Teen Vogue. October 5, 2005 |
| Rupert Grint | Ron Weasley | Veritaserum There was some speculation about whether or not Rupert would reprise his role as Ron Weasley in OotP, but he first confirmed to Veritaserum that he'd be back on Oct. 22 in London. October 22, 2005 |
| Jamie Waylett | Vincent Crabbe | Veritaserum Jamie Waylett confirmed to Veritaserum that he has signed on for the fifth movie at the London premiere of Harry Potter and the Goblet of Fire. November 6, 2005 |
| Alfred Enoch | Dean Thomas | Veritaserum At the London premiere of Harry Potter and the Goblet of Fire, Alfred (also known as Alfie) Enoch told Veritaserum that he'll be back for OotP and said that he "looks forward to it." November 6, 2005 |
| Bonnie Wright | Ginny Weasley | Veritaserum Bonnie Wright told VTM that she will return for Order of the Phoenix at the London GOF premiere, and also said that she looks forward to the budding romance between Harry and Ginny. November 6, 2005 |
| James Phelps | Fred Weasley | Veritaserum James Phelps let us know that he'd be back for the fifth movie at - where else? - the London premiere of the fourth, Goblet of Fire. November 6, 2005 |
| Oliver Phelps | George Weasley | Veritaserum Our fifth and last confirmation at the London GOF premiere came from Oliver Phelps, who, along with his brother James, will return for Order of the Phoenix in February 2006. November 6, 2005 |
| Julie Walters | Molly Weasley | Interview Julie Walters was sliced from the fourth movie, despite much protest from fans, and consequently was absolutely thrilled to be asked back for number five. She said, "It looks like it, yes! I really can't wait. Will you write to them and tell them that I'm indispensable? But, yes, it looks like I'm doing number five." December 8, 2005 |
| Chris Rankin | Percy Weasley | Convention Like his on-screen mother, Chris Rankin did not return for the fourth Potter flick, but he revealed that he'd be back for Order of the Phoenix after being unable to attend the FX 2006 convention in Florida in January 2006. January 20, 2006 |
| Katie Leung | Cho Chang | Newsletter In a newsletter mailed out in January 2006, Katie Leung confirmed that she will be back as Cho Chang in OotP. She said, "I am very much looking forward to it, as Cho's character develops into a more interesting role. I've watched the fourth film several times now and am very pleased with the outcome, as there has been much positive feedback. I still think I have room for improvement, though, so hopefully I can progress as an actress in the next one." January 28, 2006 |
| Devon Murray | Seamus Finnigan | Convention Devon told Veritaserum reader Celeste that he'd be back for Order of the Phoenix at the FX 2006 convention in Orlando, Florida in late January 2006. He also said that he'd start filming on February 6, 2006. January 29, 2006 |
| George Harris | Kingsley Shacklebolt | CBBC Newsround CBBC Newsround revealed that George Harris would play Kingsley Shacklebolt in OotP on January 30, 2006, one of the first new casting announcements made for this film. January 30, 2006 |
| Robbie Jarvis | Young James Potter | CBBC Newsround CBBC Newsround also announced that Robbie Jarvis has been cast as the young James Potter in Order of the Phoenix. Jarvis will appear on screen during the featured pensieve scene, in which Harry sees his 15 year-old father taunt Severus Snape (also fifteen at the time) on Hogwarts grounds. January 30, 2006 |
| Michael Wildman | Magorian (centaur) | CBBC Newsround A day after the above two casting announcements, CBBC Newsround confirmed that Michael Wildman would play a centaur named Magorian (non-canon). At the time of this announcement, it was unclear whether Wildman would actually appear on-screen or simply provide a voice-over for a CGI character. February 1, 2006 |
| Evanna Lynch | Luna Lovegood | Press Release In a press release issued the week before filming on Order of the Phoenix, Warner Bros. announced that 14 year-old Evanna Lynch was to play Luna Lovegood in the film. February 2, 2006 |
| Imelda Staunton | Professor Umbridge | Press Release It had long been rumored that Imelda Staunton would play the conniving Professor Dolores Umbridge, and Staunton herself stated this on several TV shows, but WB made it official soon before filming commenced. February 2, 2006 |
| Natalia Tena | Nymphadora Tonks | Press Release We found out in mid-December 2005 that the character of Tonks had been cast in the fifth HP movie, but it wasn't until early February that we found out who won the role. February 2, 2006 |
| Helen McCrory | Bellatrix Lestrange | Press Release Like Imelda Staunton, Helen McCrory was rumored to be in talks with Harry Potter directors and producers for months, before WB officially announced her addition to the HP cast on Feb. 2, 2006. February 2, 2006 |
| Kathryn Hunter | Mrs. Figg | Press Release Kathryn Hunter was the fifth new Order of the Phoenix cast member to be announced in the Feb. 2, 2006 press release issued by Warner Bros. She will play Mrs. Figg in the film. February 2, 2006 |
| Susie Shinner | Young Lily Evans | Newspaper The Daily Record reported in early February 2006 that 17 year-old Susie Shinner had been cast as the young Lily Evans in the scene in Order of the Phoenix in which Harry ventures back in time through Dumbledore's pensieve and sees his parents at Hogwarts at his age. February 4, 2006 |
| Gary Oldman | Sirius Black | Warner Bros. In response to rumors that Gary Oldman had been cut from Order of the Phoenix, Warner Bros. confirmed that he would indeed reprise his role as Sirius Black in the movie. February 7, 2006 |
| David Thewlis | Remus Lupin | Warner Bros. |
