Guard 3 (The Enemy of the World)
From Tardis Wiki, the free Doctor Who reference
A guard worked at Ramón Salamander's research station at Kanowa.
He accompanied Theodore Benik to Giles Kent's caravan. When Kent tried to attack Benik, Benik called the guard in and had him smash Kent's crockery to taunt Kent. After that, Benik and the guard left. (TV: The Enemy of the World)