Sylvia Noble
Sylvia Noble (née Mott) was the daughter of Wilfred Mott, the wife of Geoff Noble, and the mother of Donna Noble. At Christmas 2007 she attended her daughter's unsuccessful wedding to Lance Bennett. She did not believe Donna when she returned for the reception but the reception was soon attacked by Robot Santas and Killer Christmas Trees. According to her daughter, she cooks enough for twenty every Christmas. (DW: The Runaway Bride)
In 2008, Sylvia lost her husband. Subsequently, Donna moved back at home with her mother and her grandfather. Sylvia was shown to be trying to persuade Donna to get a job and find a place of their own. During a night out with her friends, one of them (Suzette Chambers) started to producing Adipose infants. Along with other passers-by, Sylvia was witness to the Nursery Ship picking up the infant creatures. (DW: Partners in Crime)
When Donna briefly returned to her family, she opted not to tell Sylvia that she was travelling with the Doctor. However, she met the Doctor again just before she saved her father from suffocating in the poisonous fog started by the Sontarans. (DW: The Sontaran Stratagem/The Poison Sky.)