Peter Sheward

 voiced several characters for Big Finish Productions.

Big Finish Doctor Who audio stories

 * Love and War - Eros

Gallifrey
As Slyne
 * Emancipation
 * Evolution
 * Arbitration
 * Extermination
 * Ascension

Big Finish Bernice Summerfield series

 * A Handful of Dust - Lud
 * Big Dig - Stylist
 * The Brimstone Kid (Crazy Hank)