Mike Smith's mother

Mrs Smith was the mother of Mike Smith, who ran a boarding house in the Shoreditch area, where the Seventh Doctor and Ace stayed during the Shoreditch Incident in November 1963.

Ace suspected Mrs Smith of having prejudiced views after she found a sign hanging in the living room window reading "NO COLOUREDS". When Ace discovered the aforementioned sign, she was openly disgusted, though she masked it well.

Her son Mike was killed when he confronted Ace back in the boarding house. He answered a knock at the door and was killed by the Girl. Mrs Smith attended her son's funeral with Group Captain Gilmore. (TV: Remembrance of the Daleks)