Dominic Monaghan did an interview with Huffington Post to promote his Travel Channel show. He had some interesting revelations about the LOTR casting process.
There have been reports that David wanted the part of Elrond
I love Bowie as much as the next guy but I think he made the right call. I don’t know if Jareth HalfElven would have had the same gravitas that Hugo “Mr Anderson” Weaving brought to the part.