Fan Casting Doctor Who Seaon 32 (2002-03)

Stopping for food in the south of England, the Doctor and Sammy met Amelia Doory and Reggie Mead, a couple apparently experimenting with finding a cure to their contamination with vampire DNA. On their trail was a vampire named Nimrod, head of a secret Black Ops organisation called the Forge, who managed to hunt the pair down in an effort to correct the failed experiment he had conducted decades earlier, code-named Project: Twilight. Sammy befriended a young mother named Cassie Schofield, while the Doctor helped Amelia perfect a cure to stop their mutation, only for Amelia to betray the Doctor and turn the cure into a superior virus, first infecting Cassie, before fleeing to infect the rest of the world. Nimrod teamed up with the Doctor to stop Amelia, blowing up Amelia's blood bank, while the Doctor pursued her, knocking the virus into the water of the River Thames, prompting her to dive for it and drown. The Doctor took Cassie to Norway to live in secret while he developed a cure for her condition.