Guest Stars Daniel Maslany as Detective Llewellyn Watts Arwen Humphreys as Margaret Brackenreid Charles Vandervaart as John Brackenreid Jim Mezon as Grayson Howard Co Starring Sara Garcia as Ada Cunningham Sarah Claire Alan as Annabeth Potter Aidan Moreno as Barney Finch Jessica Huras as Joan Dalloway Ivan Sherry as Herbert Gould David Carter as Felix Potter