Poldark Guest cast, played by Mark Frost Episode 1x01: Episode 1 (Mar 8, 2015) Episode 1x03: Episode 3 (Mar 22, 2015) Episode 1x05: Episode 5 (Apr 5, 2015) Episode 1x08: Episode 8 (Apr 26, 2015) Episode 2x01: Episode 1 (Sep 4, 2016) Episode 2x02: Episode 2 (Sep 11, 2016)