Well, to be honest, I kind of cheated.
I googled "Scottish actors", but when I saw Ewan McGregor, I looked back at the picture and indeed saw a resemblance. Good job!
I don't remember much of ME 1. I had just moved out of my then girlfriend's apartment after a nasty breakup, so I pretty much got over her through ME 1.
It's a shame I don't have a copy anymore. I can't remember if I gave it to someone or had borrowed it in the first place.