List of multi-Master stories

A multi-Master story is a story featuring two or more different incarnations of the Master. There are several different ways a "multi-Master story" can be defined; here, stories are sorted according to several different definitions. This list includes stories with flashbacks, but excludes stories featuring only pictures or archive footage of other incarnations.

Series 10's The Doctor Falls acted as both a multi-Master and multi-Doctor story.

Direct encounters
In these stories, multiple incarnations of the Master encounter each other directly, either in person, through a screen, through a phone, through a psychic link, etc. Italicisation means that the relevant Master did not directly encounter another Master in the story.

Separate narratives
In these stories, multiple incarnations of the Master appear in the same story, but at least one does not encounter other incarnation(s) as they are in separate times and/or places. This including flashbacks and audio/video recordings of a separate incarnation.

Close proximity
In these stories, multiple incarnations of the Master are in the same time and place, but do not encounter each other. This includes scenarios where one incarnation sees another incarnation without the latter incarnation's knowledge.

Manifestation
In these stories, multiple incarnations of the Master are in the same story, but some are manifestations inside the Master's mind.

(Bold denotes the real incarnations in the story.)

Regenerations and body changes
In these stories, the Master regenerates into their next incarnation, or otherwise goes from one body to another.

Duplicates
In these stories, the Master meets a duplicated version of themself.