Red Emperor

 (AUDIO: Paper Cuts) was the 15th emperor of the Draconian Empire. (TV: Frontier in Space, PROSE: The Dark Path, The Simple Things, AUDIO: Paper Cuts)

In his youth played games of Sazou against the Doctor. On the Doctor's orders he isolated his planet from the rest of the Draconian Empire to protect it from the space plague. On his death he summoned the Doctor to stand vigil as a noble of Draconia. (AUDIO: Paper Cuts) By some accounts, the Second Doctor was the incarnation who was associated with this Emperor. (PROSE: Doctor Who and the Space War, The Dark Path)

The Third Doctor later recalled his first meeting with the Red Emperor when he arrived on Draconia in 2540. (TV: Frontier in Space)

The Thirteenth Doctor referred to having been made nobility by the 15th Emperor, in order to win favour with a Draconian on late 19th century Earth. (PROSE: The Simple Things)