Erisa Magambo (Donna's World)

Erisa Magambo obliviously entered an alternate universe on 25 June 2007, when Donna Noble turned right instead of left.

Captain Magambo was in charge of a special division of UNIT. She took part in the operation to remove the Time Beetle on Donna Noble's back and with the help of Rose Tyler, sent Donna back in time to prevent the events which would result in the Doctor's death and worldwide disasters. (TV: Turn Left)