Endeavour Guest cast, played by Simon Harrison Episode 5x03: Passenger (Feb 18, 2018) Episode 6x01: Pylon (Feb 10, 2019) Episode 6x02: Apollo (Feb 17, 2019) Episode 6x03: Confection (Feb 24, 2019) Episode 6x04: Degüello (Mar 3, 2019) Episode 9x01: Prelude (Feb 26, 2023) Episode 9x02: Uniform (Mar 5, 2023)