Would they do that to us? She didn't sound the same.
Different voice for Glados?
Little known fact- That was actually the voice of Gabe Newell in the Portal 2 trailer. Seriously though I'm pretty certain that was still Ellen in the trailer they showed at E3 and I very much doubt Valve would try to pull any deliberate changes for their GLaDOS voice actress.
This edit will also create new pages on Giant Bomb for:Beware, you are proposing to add brand new pages to the wiki along with your edits. Make sure this is what you intended. This will likely increase the time it takes for your changes to go live.