Mum (The Zentrabot Invasion)

Mum was the mother of Danny and Danny. When Abby was taken hostage by the Zentrabots on Christmas, Mum and Dad saw Danny enter the TARDIS with the Eleventh Doctor. Later on, Danny and Abby reunited with their parents once the Doctor freed Abby and the other children. (COMIC: The Zentrabot Invasion)

The Doctor then took Danny and Abby for another trip in the TARDIS, promising their parents they'd only be away for five minutes. (COMIC: The Tomb of Shemura)