You can add or delete admins in the Manage Team section.
Click your store name in the bottom left and then the Manage Team button. You'll be able to add admins by clicking on Invite Members and delete admins by clicking on an existing admin.
NOTE: Owner and Admin roles have the same access as administrators with the exception that only Owners are able to create Admins. If you are an admin you will not be able to delete an Owner's profile. Contact Uscreen support if you need to change.
Viewing an Admin's Profile
If you click the admins name, you will be directed to their profile page, it's very similar to viewing a customer's profile page.