Thirteenth Azmael

The thirteenth and final incarnation of Azmael reunited with the Doctor, himself having just regenerated into his sixth incarnation, before sacrificing his life to destroy Mestor. (TV: The Twin Dilemma)

Appearance
In his thirteenth incarnation, Azmael was an elderly man with a shiny bald head, looking like Father Christmas without a beard. He wore a long brown smock. (PROSE: The Twin Dilemma)

Behind the scenes

 * Harry Andrews, Bernard Archard, Geoffrey Bayldon, and Peter Cushing were considered for the role before Maurice Denham was cast.