Nimrod is a character in the Big Finish Productions audio plays Project: Twilight, Project: Lazarus and Project: Destiny written by Cavan Scott and Mark Wright, which are based on the British science fiction television series Doctor Who. He is an original character and does not appear in the television series, and should not be confused with the character of the same name from the serial Ghost Light (1989). Nimrod works for the Forge, a top-secret organization responsible for experimenting with extraterrestrial material. During World War I Dr William Abberton was responsible for genetic experiments on vampire DNA — the so-called Project: Twilight — creating a hybrid race to act as super-soldiers. However, when the hybrids escaped, Abberton was mortally injured, only saving himself by injecting himself with the Twilight Virus, turning himself into a hybrid as well. He took the code name Nimrod, after the legendary hunter king, and hunted down the survivors of his vampire experiments. Over the years, he endured genetic alterations to stabilize his condition, even getting several cybernetic implants. Years later, he replaced Colonel Crichton as Deputy Director of the Forge. He first met the Sixth Doctor and Evelyn Smythe in 1999, while tracking down the last of the vampires to a casino called Dusk. Evelyn befriended a girl who worked there called Cassie. Cassie had left her son Tommy with his grandmother up north while Cassie tried to earn a good living in London. But the vampires turned her into one of their own and she was the only one of them to escape when Nimrod destroyed the Dusk. He eventually found her in Norway, where the Doctor had left her while he tried to create a cure. He brainwashed her and made her his replacement field agent, Artemis. He then began work on Project: Lazarus, a plan to create clones of the Doctor to discover the secrets of Time Lord regeneration. Once the Doctor had created a cure for the Twilight Virus, he and Evelyn returned to administer it to Cassie a few years later. But Nimrod captured the Doctor, took samples from his body and murdered Cassie before she could be cured. After the Doctor escaped, Nimrod started work on the cloning process, and succeeded in creating multiple identical versions of the Sixth Doctor. He clinically murdered many of them, but they all failed to regenerate. They were each short lived, but he