Lily James has been on TV.
The British Broadcasting Corporation ( BBC ) is a British public service broadcaster headquartered at Broadcasting House in London . Downton Abbey is a historical period drama television series created by Julian Fellowes and co-produced by Carnival Films and Masterpiece . Just William is a television series first broadcast on BBC One in December 2010 . Lily James . James began her professional acting career as Ethel Brown in the 2010 BBC production Just William .