Jo Castleton

Jo Castleton is a voice actor for Big Finish Productions and BBV Productions. She also appeared 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 was played by 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)

BBV Productions

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

Main range

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

Dark Eyes

 * Time's Horizon - Sciencetech Vi Kruger

Bernice Summerfield

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

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