Name – Damon
Species – Atlantean Human
Planet – Earth
Temperament – Clever
Appearances – The Underwater Menace

Damon was Atlantis' chief surgeon who converted humans who were washed up in Atlantis from shipwrecks into Fish Men – the slaves of the Atlanteans. When he realised that Zaroff was mad and that his motives were so destructive he chose to ally himself with The Doctor and his friends.