Guest Stars Isabella Brownson as Katherine Grey Robyn Betteridge as Margaret Grey Christian Patterson as Charles Tallulah Greive as Petunia Stewart Scudamore as Rupert Brandon Grace as William Joe Klocek as Fitz Michael Workeye as Archer Máiréad Tyers as Susannah Will Keen as Norfolk Barbara Marten as Granny Will Merrick as Owen Annabelle Mandeng as Sister Forbearance Ami Tredrea as Agnes Jamie Bisping as Jacob Jason Forbes as Scrope Boni Adeliyi as Rose
