nadenitza: Was the guy voicing the old Garrett willing and up for the job? I mean do they even offered him and did he refused? Never understood why he didn't voiced Garrett back...
Paradoks: I know he was considered for the role and I would be really surprised if he simply refused. I'm not sure whether he did some test recordings or not. The reason why he is not in the game is as far as I know "not fitting EM's vision of Garrett".
Funny thing is that one of the very few things that were said about the game before they've actually shown it (and it was a complete 4 year blackout) was:
"Something that is extremely clear in the forums and in the comments from the fans is to re-use the voice of Garrett, and this is obviously something that we'll consider very seriously."
Your worlds have merit considering how nugarrett looks,acts and most importantly sounds, like a younger emofag, forgive the epithet...
http://www.eurogamer.net/articles/2013-04-03-thief-dev-explains-why-it-ditched-original-garrett-voice-actor This article even throws more merit on the subject.
With the new visual of Garrett we'd created, we found that there was a disconnect that we couldn't ignore between the concepted character and Stephen's voice today," Gallagher explained.
"And to answer your question directly, the actor playing Garrett needed to be able to perform his own stunts," Verbert said.
"Garrett's a really athletic guy. We could have pasted Stephen's voice on top of the actions and stunts of someone else, but this wouldn't appear natural. It really wouldn't make any sense to capture the full performance for our other characters, but not for our star."
Not athletic enough and couldn't do stunts, sounding too old of the role... they actually, really went for that "younger look" on purpose...