You have the option of hiding or displaying your attendee list on your Event page.
Simply navigate to your event and click on the "Tickets" button on the left side menu. A new Tickets sub menu will appear, and then you click on the "Setup" button. Then select the "Registration" tab and then "Edit":
(Note: you can also perform this task while initially setting up your registration, and also change it at any time.)
Next, scroll down to the "Attendance Roster Information" section at the bottom of the screen. You have several options to either hide or show various attendee information.