Cast for Harry Potter and the Half-Blood Prince

As you all know the sixth movie is being filmed right know and Ron is going out with Lavender so we must have a Lavender. For all who don't know, on July 1st an open casting call was held for Lavender and over 7000 girls were there to read the script in the scene with Madam Pompfrey, Ron and Hermione. Yates, the director, brought in Rupert Grint to read certain lines and snog the top five best candidates for Lavender, to see which pair has the best "chemistry".
A girl named Jessie has been casted for the role, her last name has not been disclosed. Emma Watson described her as "perfect for the role of Lavender".
List of the Cast:
Daniel Radcliffe as Harry Potter: Warner Bros. officially announced on 23 March 2007. Radcliffe has insisted that he will not be on autopilot while filming, and intends to make Half-Blood Prince better than the previous five films.
Rupert Grint as Ron Weasley: Warner Bros. officially announced on 23 March 2007.
Emma Watson as Hermione Granger: Warner Bros. officially announced on 23 March 2007.
Watson considered not returning for the sixth film, but eventually decided that "the pluses outweighed the minuses" and could not bear to see anyone else play Hermione.
Michael Gambon as Albus Dumbledore: Radcliffe confirmed on 24 September 2007 in an interview with MTV. The revelation of Dumbledore's sexuality prompted Gambon to "camp up" around the set when off camera, but his on screen performance remains the same as it was in the previous films.
Jim Broadbent as Horace Slughorn: Confirmed on 17 September 2007 by Dark Horizons. He describes his costumes as "tweedy", and the character as "comic", while Radcliffe noted that "[Slughorn's] tragedy will outweigh the comedy".
Tom Felton as Draco Malfoy: Has a penciled-in contract, in his words, though not set in stone.
Bonnie Wright as Ginny Weasley: Wright confirmed in an interview on July 10, 2007 with the IndieLondon.
Matthew Lewis as Neville Longbottom: Lewis confirmed in an interview on 22 June 2007.
Evanna Lynch as Luna Lovegood: Lynch confirmed in an interview at Dublin premiere of Order of the Phoenix on 8 July 2007.
David Thewlis as Remus Lupin: Thewlis confirmed in an interview with Simon Mayo on BBC Radio Five Live.
Natalia Tena as Nymphadora Tonks: Tena confirmed in an interview with The Belfast Telegraph on 31 October 2007.
Helen McCrory as Narcissa Malfoy: Confirmed by Newsround on November 9, 2007. McCrory was originally cast as Bellatrix Lestrange in Order of the Phoenix, but had to drop out due to pregnancy.[44] Naomi Watts was previously reported as having accepted the role, only for it to be denied by her agency.
Helena Bonham Carter as Bellatrix Lestrange: Bonham Carter's publicist confirmed on 10 August 2007 in The Independent. She will not film her scenes until spring 2008.
Katie Leung as Cho Chang: Leung confirmed in an interview on 9 November 2007.