Paula Quatermass

The Tenth Doctor once told Wilfred Mott and Bernard and Paula invited him to the Royal Planetary Society in 1969 to watch the Moon landing. (PROSE: Beautiful Chaos)

Behind the scenes
While her surname was left unmentioned in PROSE: Beautiful Chaos, the character is clearly intended to be from Quatermass, a television series that is mostly depicted by Doctor Who stories as taking place in the DWU.