Sam Clemens

Sam Clemens, also credited as Samuel Clemens, was a voice actor and director for Big Finish Productions.

Gallifrey

 * Havoc
 * Partisans
 * Collateral
 * Assassins

Main Range

 * Blue Forgotten Planet - James Atherton
 * Lurkers at Sunlight's Edge - Slade

Fourth Doctor Adventures

 * The Planet of Witches - Yggra / Tiresias / Familiars

The Third Doctor Adventures

 * Operation: Hellfire - Hegley

UNIT

 * Dominion - Wyland-Jones

The Diary of River Song

 * The Web of Time - Corporal Buscombe/The Intelligence

Main Range

 * The Monsters of Gokroth
 * The Moons of Vulpana
 * An Alien Werewolf in London
 * The Psychic Circus
 * Subterfuge

The Third Doctor Adventures

 * Operation: Hellfire - Winston Churchill's lines only. (BFX: Operation: Hellfire)