Grantchester Guest cast, played by Lauren Carse Episode 5x01: Episode 1 (Jan 10, 2020) Episode 5x02: Episode 2 (Jan 17, 2020) Episode 5x03: Episode 3 (Jan 24, 2020) Episode 5x04: Episode 4 (Jan 31, 2020) Episode 5x05: Episode 5 (Feb 7, 2020)