Here are some of the confirmed actors doing voice over for the game.

Ken Lally -  role not specified


Curtis "50 Cent" Jackson - Will provide voice over for Special Ops Co-op


Kevin McKidd -  Will provide voice over for Captain MacTavish


Craig Fairbrass -  Role Unknown


Barry Pepper -  Role Unknown


Keith David -  Role Unknown


Glenn Morshower - Role Unknown


Sources...
http://www.gametrailers.com/player/45666.html
http://www.gamezine.co.uk/news/game-types/shooter/call-duty-6-employs-voice-actor-$1264668.htm
http://www.destructoid.com/50-cent-to-be-appearing-in-modern-warfare-2-143297.phtml
http://thisis50.com/profiles/blogs/50-cent-visits-infinity-ward
http://www.gamespot.com/news/6215853.html
http://forums.infinityward.com/viewtopic.php?f=13&t=78084&p=1465868#p1465868

Great info thanks Strand!

GOA.Luke*BK*

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Sweet! 50 Cent rocksssss. and then the sniper dude from Saving Pvt.Ryan, hes cool too . Awesome info strand, thxs

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