Petronella Osgood

Petronella Osgood is a scientist working for U.N.I.T., acting as a personal assistant of Kate Stewart. She is a great admirer of the Doctor, and met him in his War, Tenth, Eleventh and Twelfth incarnations. During the Zygon Invasion, she was duplicated by a Zygon, and the two worked together and became indistinguishable from each other after the treaty was signed.

Early Life

 * Petronella Osgood#Childhood

Joining U.N.I.T.

 * Petronella Osgood#Joining U.N.I.T.

Meeting the Doctor

 * Petronella Osgood#Meeting the Doctor

The Darkness
To be added

Invasion of Earth
To be added

Abilities and Traits
To be added

Appearance
To be added

Appearances

 * Doctor Who
 * Series 1
 * Shadows
 * Skaro
 * Out of the Dark
 * Series 2