How to hide multiple roles with roles.getallroles()

I have a multi level application that I am developing and need to block multiple rows from being joined. I know how to hide one role but I cannot figure out how to hide multiple.
Here is my current code
 
RoleList.DataSource = Roles.GetAllRoles().Where(r => !r.Equals("Admins"));  
Any help would be appreciated.
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