All Creatures Great and Small fans swoon over 'formidable' newcomerAll Creatures Great and Small fans were quick to fall for Sister Rose, who is played by Elexi Walker. ‌One fan posted on the platform as the show aired on Thursday (October 2): "I already love Sister Rose. View 4 Images Sister Rose has joined All Creatures Great and Small (Image: Channel 5 screengrab)"I love Sister Rose already," declared another, whilst someone else shared: "We LOVE seeing more strong women on the show! There have also been numerous special episodes of All Creatures Great and Small focusing on the happenings at Skeldale House. Article continues belowAll Creatures Great and Small airs on Channel 5.