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 Will Merrick as Owen Barbara Marten as Granny Annabelle Mandeng as Sister Forbearance Jamie Bisping as Jacob Ami Tredrea as Agnes Jason Forbes as Scrope Boni Adeliyi as Rose
