Board Thread:Questions and Answers/@comment-5148806-20130124071455/@comment-98.119.25.70-20130130151325

Having played through the game about five times now, I think that the list is partially correct. I'll simply list the characters with the sins I think is more accurately shown by them:

Knight: Sloth (not in actual laziness, but some do consider this sin to be more so failing to do good)

Adventurer: Pride

Scientist: Greed

Twins: ... Gluttony? (I'm not quite certain how gluttony fits in with the Twin's story, but the other six sins were already taken)

As for the other three, I think the Hillbilly, Monk, and Time Traveler were spot on