discussions and sort of solutions are here downside is stil that you have to run the command or script each time you want them to face the camera. i believe it has been worked on but no idea about the outcome so far. maybe @pascal can hint out the status.
another idea if you can do with black figures only, you could use a font with human bodies and a horizontal to view style. that would solve that it keeps facing the camera for now if you can get such a font working.