He also looks like this:
How old would he be, reasonably speaking? Lower end, upper end?
Edit: Guys, guys. This guy's actually a canon character. If he was my OC, I'd definitely swing his age a little more upward, believe me. I'm sorry if there was any terrible confusion.
Here have a video.
Edit2: You guys are really smart and helpful. (I mean it, too.) Considering the sheer over-the-top of the setting and characters (Team Fortress 2: Where a man can rocket jump and invincibility comes in 10 second bursts), I'm going to just revel in the fact that there is no real sensible reason for anyone to have 11 PhDs, keep age ambiguous (but in a generally halfway sensible range), and laugh nervously when pressed.
Thanks, little_details. :D