NEW UPDATE
It was commented on, that in my foolishness, when I designed these, I wanted the bases to match the ones of the original minis perfectly, including, the ring lip on the bottom of the bases. This was foolish, it would not be seen, and would only cause problems when printed. way back when I worked on these, I hadn't saved them in a format that allowed for easier backtracking, and made it more complicated to fix easily.
I have come up with an easy enough fix, the bases are now smoother than the previous versions, and have a flat bottom for easier printing, also the Little Girls ankles should be less breakable. V3 is the current versions, v4 for the Little Girl.

MASSIVELY UPDATED
My skills since I originally posted these, have improved a lot.
I went back to the original files, and remade newer versions, with far better detail, and printability.

Also the little girl has been remixed with wider ankles for better printing, which can be found here. I am debating uploading my fix to her ankles, but jorgeluispena has already uploaded a fixed version.
https://www.thingiverse.com/thing:4789018

I have seen quite a few files for Betrayal at the House on the Hill, and a few 3D printable companions.
Turning my eye to 3D printing for some of my older favorite games, I found myself frustrated over the companions.
The quality varied, the scales varied, and the bases, often didn't match the figures from the game.

So I set out, to assemble a set for my use, of the 4 companions, the Little Girl, the Dog, the Madman, and from the Widows Walk expansion, the Cat. Scaled to match the games figures, and with a matching base style.

I have had a difficult time, finding a Madman I liked, so I designed my own using the Beta edition of Desktop Hero 2.0.

Once I print out my own, and paint them, I will post pics.

Edit ...and then I designed a Madman in DesktopHero2.0.
Edit found a flaw in the mesh of the Madman when printing, fixed version is now uploaded.