Frank Oz Interview (March 2008)

Frank Oz did an exclusive interview for Movieweb, where he mentions working with Matthew Macfadyen.  You can read the full interview here.
Frank Oz:
...All the other people, I didn't know
who Matthew (McFayden) was. Matthew is an amazing solo actor. There are
so many others in that group. I just got lucky. They came in to
audition and I was amazed by these people.

Oh yeah. I was just blown away. I mean, Peter and Alan were the only two I was really familiar with. I'd seen Matthew in Pride & Prejudice but...

Frank Oz:
Yeah. Personally, I think that's why he liked it. Like me, I don't want
to do the same thing over and over again, and he's doesn't want to do
the same thing over and over. He's that brooding, dark, handsome guy,
and now he's kind of this pasty-faced milquetoast guy, which is exactly
why he wanted to do that.