reviewedBy Instead of Person

Yes, it may possible. can you know us how you are creating a custom user profile?

I use a function like this to create the new user profile:

/* Create Reviewer User Role */
remove_role('reviewer');
add_role(
    'reviewer', //  System name of the role.
    __( 'Reviewer'  ), // Display name of the role.
    array(
        'level_8'  => true,
        'read'  => true,
        'delete_posts'  => false,
        'delete_published_posts' => false,
        'edit_posts'   => true,
        'edit_others_posts'   => true,
        'publish_posts' => true,
        'upload_files'  => true,
        'edit_pages'  => true,
        'edit_others_pages'  => true,
        'edit_published_pages'  =>  true,
        'publish_pages'  => true,
        'delete_published_pages' => false, // This user will NOT be able to  delete published pages.
    )
);

Currently, we do not have the “Reviewed by” field in the Article schema. But we have these fields in the “Webpage” schema and you can set up article and webpage schema both on the same page.