Chief Inspector Liam O'Neal, an Irish police officer connected with Interpol, was played by actor Cedric Smith in the Season Two episode "Bad Blood", the only one in which the character appeared. O'Neal is seemingly an open, friendly man with a flirtatious manner around women. However, he is concealing a strange secret about his past. As a boy, O'Neal saw his mother killed by a vampire, and was attacked himself. To prevent him being brought across, neighbours took him to the local church, where the priest, Father Hurley, cleansed the bite with holy water—an extremely painful process.