Jo Castleton

Jo Castleton is a voice actor for Big Finish Productions and BBV Productions. She also appeared in live-action as Natasha Alexander in the Auton Trilogy and psychiatrist Doctor Lauren Anderson in Zygon: When Being You Just Isn't Enough, both by BBV Productions.

Jo Castleton auditioned for the role of Bernice Summerfield in the Big Finish Bernice Summerfield audio series. The role ultimately went to Lisa Bowerman.

BBV Productions

 * Auton 2: Sentinel - Natasha Alexander
 * Auton 3: Awakening - Natasha Alexander
 * Zygon: When Being You Just Isn't Enough - Lauren Anderson
 * Lauren Anderson - Lauren Anderson (flashbacks)

Doctor Who Main Range

 * The Marian Conspiracy - Sarah Whiteside
 * Brotherhood of the Daleks - Nyaiad

Dark Eyes

 * Time's Horizon - Sciencetech Vi Kruger

The Eleventh Doctor Chronicles

 * The End - Delphine / Computer

Bernice Summerfield

 * Oh No It Isn't! - Jayne Waspo
 * Venus Mantrap - Megali Scoblow

Cyberman
As Hazel Trahn
 * Outsiders
 * Terror
 * Machines
 * Extinction

The Time Travellers

 * Blood Sports - Djala

The I

 * I Scream - Sol

The Faction Paradox Protocols

 * Sabbath Dei - Sieur d'Eon
 * In the Year of the Cat - Sieur d'Eon