Shirley MacLaine is confirmed to return as Martha Levinson in Season 4 of Downton Abbey.

Six new cast members will be joining the actress when Downton Abbey returns to PBS next year. Announced this morning were Nigel Harman, who will play the valet Green, and Joanne David, who will play the Duchess of Yeovil.

Previously announced new cast members include Dame Kiri Te Kanawa as a guest who likes to sing in the house, Tom Cullen as Lord Gillingham, an old friend of the Crawleys who visits for a house party, Dame Harriet Walter as Lady Shackleton, and Julien Ovendon as Aristocrat Charles Blake.

Downton Abbey Season 4 does not have a confirmed debut date at this time.