User:Neffyarious

First

 * William Hughes
 * Milo Parker
 * Roger Delgado-likeness as an adult (CIA File Extracts)

Takes the name "The Master" at the academy.

Second

 * Comic only (Flashback)

Uses the name "Magnus".

Third

 * Anthony Keetch

Uses the name "Pavo". Is bald.

Fourth

 * Janet Dibley

Uses the name "Pavo".

Fifth

 * Roger Delgado-likeness (The Dark Path)

Uses the name "Koschei". Swears to only call himself "The Master" following this incarnation.

Sixth
Spent escaping from the Darkheart.

Seventh

 * James Dreyfus

The "First Master" (in that he is the first to use his academy title as his prime name as a renegade).

Eighth

 * Generic master look (The Radio Waves)

Pretends to be Merlin.

Ninth

 * Book only (Save Yourself)

Seemingly * only ever seen regenerating into the War Chief.

* The 6th Master listed prior is the only incarnation listed here as having been wasted in the Darkheart, however it is possible that the 7th was also wasted.

If this is the case the Master played by Dreyfus (listed here as 7th) would actually be the 8th, while the Merlin Master would be 9th – and thus would be one and the same as the unseen Master *

Tenth

 * Edward Brayshaw

The War Chief.

Eleventh

 * Book only (Timewyrm: Exodus)

Looks like two people fused together. Has white hair and beard.

Twelfth

 * Roger Delgado

Thirteenth

 * Peter Pratt
 * Geoffrey Beevers

Is forced into a decayed state.

Fourteenth

 * Anthony Ainley

Temporary artificially gained Regeneration via first using the Source to merge with Tremas to regenerate, then again by stealing regeneration energy from past selves, then again via Tzun nanites.

Fifteenth

 * Basil Rathbone-likeness

Temporary artificially gained Regeneration via Tzun nanites.

Thirteenth (again)

 * Geoffrey Beevers
 * Gordon Tipple
 * Eric Roberts

Reverts back, uses alien genes to become un-decayed, exterminated and becomes a Deathworm Morphant, used numerous bodies but eventually reverted back to decayed state. Is killed, but resurrected by Time Lords.

Sixteenth

 * Alex MacQueen

Seventeenth

 * Jonathan Pryce

An incarnation existed between those played by MacQueen and Jacobi (Girl Power!), Missy validated the existence of this Master (The Bekdel Test), who was referred to as the "Seventeenth Master" (The Curse of Fatal Death BTS)

Eighteenth

 * Derek Jacobi

Nineteenth

 * Comic only

Existence removed when he reverts back to Eighteenth as a result of a temporal bomb. (Fast Asleep)

Eighteenth (again)

 * Derek Jacobi

Temporarily becomes the human "Yana". Restored to normal after opening fob watch.

Twentieth

 * John Simm

Dies but is resurrected by his disciples.

Twenty-First

 * Michelle Gomez

Twenty-Second

 * Gina McKee

Uses the name "the Lumiate" instead of "the Master".

Twenty-Third

 * Sacha Dhawan

Future incarnation of unknown numbering

 * Book only (Harvest of Time)

Masked woman wearing a frilly black dress. Black hair streaked with white, combed back from her forehead.

Final

 * Audio only (Masterful)

Exists as a sentient entropy wave. Existence averted.