Required information for an invididual: name, date of birth, nationality, service address, usual residential address, and nature of control.
Required information for a Relevant Legal Entity: name, address, legal form, governing law, country of registration, registration number, and nature of control.
Required information for an Other Registrable Person: name, address, legal form, governing law, and nature of control.
You will need to include the country in the usual residential address because Companies House requires the PSC's country of residence.