The Tower Main cast, played by Gemma Whelan Episode 1x01: Episode 1 (Nov 8, 2021) Episode 1x02: Episode 2 (Nov 9, 2021) Episode 1x03: Episode 3 (Nov 10, 2021) Episode 2x01: Episode 1 (May 16, 2023) Episode 2x02: Episode 2 (May 23, 2023) Episode 2x03: Episode 3 (May 30, 2023) Episode 2x04: Episode 4 (Jun 6, 2023)