Tolga Safer, who will play Karkaroff's aide in the upcoming Harry Potter movie has given interviews to both The Leaky Cauldron and HPANA. Leaky's interview can be read
here. Quote:
How did you get cast in Goblet?
I was originally seen for the part of “Viktor Krum” around Christmas 2003. I then went and met Mike Newell (Director) and the casting directors Mary Selway and Fiona Weir for a second time at the film studios. Two weeks later my agent phoned me and told me they were going with someone else for Viktor Krum but that Mike liked my auditions and that a part had been created and offered to me, the part of Aide to Professor Karkaroff.
Quote:
If you could play any character in the books, who would it be and why?
I would have to say Snape. Snape is a great character in the books and is played amazingly by Alan Rickman in the movies. I like Snape because there is a sense of mystery about him. His intentions and whether he is a goodie or baddie, so to speak, are always in question. Apart from Dumbledore I don’t think anyone is 100% sure, and I like that.
HPANA's interview can be read
here Quote:
Can you tell us anything about your character? What is his purpose?
Tolga: As people know and point out Karkaroff does not have an aide/sidekick in the book however the part was created after I had a second meeting with Mike Newell and the casting directors Mary Selway and Fiona Weir. Mike Newell's view of the character was that he would have been a former student of Durmstrang and then became Prof. Karkaroff's second in command and assistant. He's kind of a "mini-me" to Karkaroff.