QI XL Guest cast, played by Tom Allen Episode 12x13: Quills (Feb 22, 2020) Episode 13x02: Ruff and Reddy (Sep 5, 2020) Episode 13x10: R Animals (Jan 7, 2021) Episode 15x05: Trundling (Jan 27, 2023) Episode 16x09: Unrelated (Feb 27, 2024)