it's voiced by actor Matt Griesser / it's been posted on a couple other "ask" webpages.
The voice talent of the interrupting cheese is Matt Griesser....CHEESE!
It's Joe Smith - see www.joesmith.com
Richard Thomas
The voiceover is done by English Actor and comedian, Jake Wood.
Pete Postlethwaite
Sweeney MacArthur
Tom Ravenscroft.
Anthony Hopkins
Gotta be Kelsey Grammer!
steve belford
jeff bridges
i think it is ellen degeneris sp?