gremlin hunter,
Welcome to the forum. I'm not sure what you mean by "2D skins". However you can use lots of MSAgent characters. Use the forum's search tool located at the top right of the forum pages. Just search for the words "agent characters uhp". Don't include the quotation marks in the search. There is plenty of information in previous forum posts. Use the search tool regularly and you will be rewarded with more info than you can remember.
Try out Hal for a while. If you like him buy the full version. It is reasonably priced. Then you can use Haptek 3D characters, very cool stuff.
=vonsmith=