Board Thread:General Discussion/@comment-11649650-20130708015531/@comment-94.5.176.79-20130819153719

You can choose his personality many times, for instance when you do the dark brotherhood questline you can choose quotes like 'Yes I will kill them all, Hail Sithis!' which is a bit evil but you can choose ones like 'If I must.' which is showing a bit of denial.