Tegan Jovanka's mother
Tegan Jovanka's mother was according to one account, called Joy Jovanka (PROSE: Divided Loyalties) and according to another account Alicia Jovanka Graham. (PROSE: Little Did She Know) She was the mother of Tegan Jovanka and the daughter of Andrew Verney. At some point in her life, she was married to Tegan's father, William. (PROSE: Divided Loyalties)
When Tegan was a child, Joy took her to a corroboree, which gave her a recurring nightmare. (AUDIO: Psychodrome) She had grey hair from when Tegan was young. (PROSE: Good Companions)
When Kamelion tapped into Tegan's memories, he was overwhelmed by childhood memories of Tegan's parents and Aunt Vanessa, as well as the Fifth Doctor's memories of Gallifrey. (PROSE: Qualia)
Joy was still alive in 2006. On 22 September of that year, she telephoned her daughter to wish her a happy forty-sixth birthday. She wanted to pay Tegan a visit so they could celebrate together, but Tegan claimed she was too busy with work to fit her mother into her plans. She told her she was going to have a few drinks with her friends from work instead. (AUDIO: The Gathering)