The Master

The Master was the moniker used by a renegade Time Lord. Cruel, cold and at times almost completely psychotic, they were nonetheless possessing of a naturally suave, charming manner, a tool they used to their benefit. Their goals, which included universal dominion, and the unnatural prolonging of their own life, often brought them up against their longtime enemy and one-time friend, the fellow Time Lord known as The Doctor.

Season 8 (1971)

 * Terror of the Autons
 * Mind of Evil
 * The Claws of Axos
 * Colony in Space
 * The Dæmons

Season 9 (1972)

 * The Sea Devils
 * The Time Monster

Season 10 (1973)

 * Frontier in Space

Season 14 (1976)

 * The Deadly Assassin

Season 18 (1981)

 * The Keeper of Traken
 * Logopolis

Season 19 (1982)

 * Castrovalva
 * Time-Flight

Season 20 (1983)

 * The King's Demons
 * The Five Doctors

Season 21 (1984)

 * Planet of Fire
 * The Caves of Androzani

Season 22 (1985)

 * The Mark of the Rani

Season 23 (1986)

 * The Trial of a Time Lord
 * The Ultimate Foe

Season 26 (1989)

 * Survival

Season 28 (1991)

 * Mission: Unusual (Two episodes)

Season 30 (1993)

 * Return to Devil's End (Three episodes)

Season 31 (1994)

 * Masterplan (Three episodes)

Season 33 (1996)

 * Whodunnit (Three episodes)

Season 34 (1997)

 * The Gallifrey Incident (Four episodes)

Season 36 (1999)

 * New Eyes (Three episodes)

Christmas Special (2001)

 * The Christmas Invasion (One episode)

Season 38 (2002)

 * Killing Time (One episode)
 * Trial of the Master (One episode)