Played by Natalie Dormer
The Lady Door hails from family of Arch, one of the foremost families in London Below. The daughter of Lord Portico, Door is an 'opener', possessing her family’s unique ability to unlock doors or to create and open doors and openings where none exist.
"If this is the last door I open let it be to somewhere safe."Door
When her family is brutally murdered, Door finds herself on the run for her life, desperate to find out who ordered the assassination - and why - and to avenge their deaths.