Hidden Names are Displaying

[KCMFCC]

We have hidden certain people from displaying in our Global Address book.  Problem is that these hidden accounts show up in SharePoint lists that have people/group lookup columns.  Is there a way to keep an account from showing up in SharePoint as well?

[#2]

@KCMFCC In the configuration of the Person field you can specify users in a specific group. In the 'Choose from' setting, select 'SharePoint Group'. This will require the users to be a member of the specific group.

[#3]

@Steve Knutson 

Thanks, but won't be of use.  We still need to keep some individuals from displaying from the listing.