List of multi-Doctor stories

A multi-Doctor story is a story featuring two or more different incarnations of the Doctor. Similar to List of multi-Master stories, this list includes stories with flashbacks but excludes stories where the Doctor regenerates and stories featuring only pictures or archive footage of other incarnations.

Retro-regeneration
In these stories, the Doctor temporarily retro-regenerates (i.e. is de-aged) into past incarnation(s).