Second sister helmet

Since the release of some new character, I noticed that some of them have their helmets during battle but not in the character profile like "new" the bad batch or even more recent inquisitor bariss, like the second sister is one of my favourite character I wanted to know if it was possible to do this for. I remember that when she came out she had her helmet on, but get removed for the release of jedi knight cal kestis, so the helmet version model must be in the game files. 
(there must be other character in that case)