I think you want to do this once-off, so there is no need for something fancy like creating an Artisan command etc. I would suggest to simply use php artisan tinker (great tool!) and add the following commands per user:
$user = new App\Models\User();
$user->password = Hash::make('the-password-of-choice');
$user->email="the-email@example.com";
$user->name="My Name";
$user->save();