The Telligent Community / Community Server control panel doesn't expose a nice list of users in a particular role, but for auditing purposes its sometimes useful to be able to view all members in a role. If you have access to the database and SQL knowledge, this is fairly straightforward using the cs_Security_UsersRoles table (pre TC5 you would have looked in aspnet_UsersInRoles). However you can also (as a site admin) easily use the v1 rest API's to accomplish this. If your site has rest enabled (if not you will get a 503 error). You can simply log in to your community, and browse to
http://[yourcommunity.com]/api/membership.ashx/users?role=[rolename]
This will present you with an XML list of all the users in the given role; by default the rest API will use a paged list with a page size of 20 items, you can navigate to subsequent pages by appending &pageindex=[page] and or you can increase the items per page using &pagesize=[pagesize]
-Dan