I'm a relatively new fan of Kavan's, but I've already seen several of his movies you can buy on DVD (Titanic, Due East, Nightmare at the End of the Hall, to name just a few) and a lot of TV shows/guest appearances I managed to find. Right now I'm waiting for my four seasons of The 4400 to arrive because I haven't been able to see all the eps yet.
I'm from Germany and therefore finding Kavan's work is sometimes difficult, but I'm slowly making progress.
Greetings from Germany,
Sabine


