The Sinner Guest cast, played by David Huynh Episode 4x02: Part II (Oct 20, 2021) Episode 4x04: Part IV (Nov 3, 2021) Episode 4x05: Part V (Nov 10, 2021) Episode 4x06: Part VI (Nov 17, 2021) Episode 4x07: Part VII (Nov 24, 2021) Episode 4x08: Part VIII (Dec 1, 2021)