Guardmaster
From Tardis Wiki, the free Doctor Who reference
The Guardmaster was the leader of Lady Adrasta's guards on Chloris.
He, Karela, Romana II, K9 Mark II and two of his guards were sent to kill Erato in "the pit". However, Erato wove a barrier to prevent the guards from attacking him. The Guardmaster and his guards were unable to destroy the barrier. (TV: The Creature from the Pit)
