Rupert Grint as Ron Weasley (Redemption) Gary Oldman as Sirius Black James & Oliver Phelps as Fred & George Weasley Robert Pattinson as Cedric Diggory Brendan Gleeson as Mad-Eye Moody Miranda Richardson as Rita Skeeter (Redemption) Stanislav Ianevski as Viktor Krum (Redemption) Jeff Rawle as Amos Diggory Predrag Bjelac as Igor Karkaroff Shirley Henderson as Moaning Myrtle Henry Lloyd-Hughes as Roger Davies Tiana Benjamin as Angelina Johnson Warwick Davis as Professor Flitwick Angelica Mandy as Gabrielle Delacour