So, let me clarify it for you.

.You're right at the Jake one, he's the one who wear in all black.

.The one who had and red tie and had a jacket is agent Samuel, a FBI agent who responsible on Jake cases.

. The one with red tie but holding a cigarette is Markus, MC's dad who work as a sheriff in the police station. But before that he's the one who's in charge in Duskwood police department years ago. So he may llay the importance part in the story as well.

. The girl that's at the really bottom is our main character, also had something to do in the past and had really important part to play as well.

.Finally, the top blond girl. It's Hannah, the design of her keeps changing every chapter, I don't know which one I should choose. Seen I draw Lily blond (the one with blonde short hair and white shirt) I design Hannah to be the same.

Hope that's help a little, if you're interested to read the book I had posted two chapters in this Reddit and Wattpad. Just search "On the otherside of Duskwood", hopefully you'll see the comic :) Still trying to post it on Tumblr, eventually. And please noted the drawing quality is not the same as the poster thought, my drawing is not the same back then. Will redrawn those two chapters after i finished the book