Annabel Morden

Annabel Felicity Morden owned Morden Clinic. At the age of nineteen, she married her childhood sweetheart, Jonathan, who died several months later in a car crash. Years later, she met the Helliax in Jonathan's form and became pregnant, after which "Jonathan" disappeared. After a month, she gave birth to Adam.

As Adam grew older, he struggled with Earth's atmosphere and, after taking him to the hospital, Morden decided to keep him locked away beneath Morden Clinic for his safety. To find a cure, she hired Jennifer Harrison to vivisect aliens and learn from them, an operation which was uncovered by the Fifth Doctor and UNIT in 1984. She was reunited with the Helliax, who returned for Adam, and left with him and their son in the TARDIS for the Eye of Orion, where Adam would be safe. (AUDIO: The Helliax Rift)

Behind the scenes

 * In the script, Morden is described as "(F, early 40s) Mother with a tragic past, desperately trying to make the world a better place for her son."