With filming due to start on the fifth Harry Potter film, CBBC Newsround can reveal that actor George Harris has been cast as Kingsley Shacklebolt.
In the Potter adventures, Shacklebolt works for the Ministry of Magic as a Dark Wizard catcher.
He is also a member of the Order of the Phoenix - the group set up to fight the evil Lord Voldemort.
Harris has had a long acting career, appearing in films including Steven Spielberg's Raiders of the Lost Ark.
He's also been in lots of TV programmes such as Casualty and The Bill.
More casting news
Other casting for The Order of the Phoenix includes teenager Robbie Jarvis as Young James Potter. In the book, Harry sees his father James when he magically enters Potions Master Professor Snape's memory.
Robbie is a keen footballer and basketball player. And has had a variety of stage roles with the East Side Theatre Company.
Harry Potter and the Order of the Phoenix will be released sometime in 2007.