The Undeclared War Main cast, played by Siân Brooke Episode 2x01: Episode 1 (Jul 21, 2026) Episode 2x02: Episode 2 (Jul 21, 2026) Episode 2x03: Episode 3 (Jul 21, 2026) Episode 2x04: Episode 4 (Jul 21, 2026) Episode 2x05: Episode 5 (Jul 21, 2026) Episode 2x06: Episode 6 (Jul 21, 2026)
