Can't get hidden field to show in views.

Can't get hidden field to show in views.

I've been trying to search through the forum to see if this has already been answered, but haven't so far.

Here's the problem:

I have staff that are initially hidden from the user until they enter in the department, and once they choose the dept. the staff in that area show up. Easy. Ok, now I want to display the entry in a View showing just the selected staff that was based on the department. I don't want to show the staff from other departments. For example, I have these fields:
ArtStaff
HRStaff
If they choose HR as the department I don't want the ArtStaff to show in the View.

Is there code I should look for or is this even possible?

Thanks ahead for reading this. Have a great weekend.