For Archie I see him playing as a high-wisdom character, maybe an elven wizard? Not necessarily evil - possibly true neutral? He'd want to be the party tactician and he's the one to pay close attention to what the game master is saying and take notes, put together these information tidbits into a coherent plan and point out any inconsistencies. (Hehlel should be an easy one Still might be interesting, I had a similar thought experiment with my game master years ago regarding her and I'm kinda interested in seeing what conclusions others would draw)
(AAAAnd the below commenter got it to a T XD
In addition I think she's got very little imagination so she'd either base the character on herself or, when called out on it, just turn to whoever's sitting to the left of them and make a character out of that person)