User blog comment:JakePT/Lair of the Shadow Broker is INCREDIBLE/@comment-2256917-20100909224220/@comment-2256917-20100911223959

I haven't played Overlord, but the image of Tali and Grunt waving their arms around while Shepard gets "hacked" is hilarious. - Maybe they don't do it because they don't think it's necessary and it would require paying the voice actors more, or several weren't available (doubtful).