Guest Stars Isabella Brownson as Katherine Grey Robyn Betteridge as Margaret Grey Christian Patterson as Charles Tallulah Greive as Petunia Brandon Grace as William Stewart Scudamore as Rupert Joe Klocek as Fitz Máiréad Tyers as Susannah Will Keen as Norfolk Michael Workeye as Archer 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
