Hello everyone,
Is there a way to autopopulate values to a People Picker Field in SharePoint List?
SharePoint does not provide an out-of-the-box option to specify a default value for Person column type. The rationale is that Created By is auto populated with the current user when adding a new item.
You can explore scripting, customize InfoPath form, or use a 3rd party add-on to assign a default value to a custom Person column depending on your need and comfort level to setup the SharePoint list.
Fred