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
 * Auton 3: Awakening
 * Zygon: When Being You Just Isn't Enough

BBV Productions

 * I Scream (as Sol)
 * Sabbath Dei (as Sieur d'Eon)
 * In the Year of the Cat (as Sieur d'Eon)

Bernice Summerfield

 * Oh No It Isn't! (as Jayne Waspo)
 * Venus Mantrap (as Megali Scoblow)

Main range

 * The Marian Conspiracy (as Sarah Whiteside)
 * Brotherhood of the Daleks (as Nyaiad)

Cyberman

 * Outsiders (as Hazel Trahn)
 * Terror (as Hazel Trahn)
 * Machines (as Hazel Trahn)
 * Extinction (as Hazel Trahn)

Dark Eyes

 * Time's Horizon (as Sciencetech Vi Kruger)