Sally Jacobs
Sally Jacobs was a UNIT secretary (TV: The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"]) and Systems Analyst. (PROSE: The Time Traveller's Almanac [+]Loading...{"chaptname":"Everything Changes","page":"82","chaptnum":"3","1":"The Time Traveller's Almanac (reference book)"})
Biography
On 24 December 2006, Sally explained to Harriet Jones what UNIT knew about the Sycorax transmission and their spaceship.
Sally was of the A-positive blood group. It was because of this that she came under the influence of the Sycorax's blood control. She was compelled by the Sycorax to go to the rooftop of the Tower of London and stand on the edge. After the Tenth Doctor disabled the device, she returned to normal. (TV: The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"])
Behind the scenes
The script for The Christmas Invasion gives Sally's age as 25.[1]
Freema Agyeman auditioned for the role of Sally before later landing the roles of Adeola Oshodi in Army of Ghosts [+]Loading...["Army of Ghosts (TV story)"] and subsequently Martha Jones.[2]
