Palmer (Terror of the Zygons)

A UNIT corporal was one of the UNIT soldiers stationed at Tulloch to investigate the destruction of nearby oil rigs.

When he was giving reports to Brigadier Lethbridge-Stewart, the Zygons used gas to knockout the villagers and the UNIT personnel to stop them from seeing the Skarasen when it was crossing the moor.

When the Fourth Doctor, Sarah Jane Smith, RSM Benton and Huckle arrived, they revived the corporal, the Brigadier and the rest of the soldiers. He later told the Brigaider the position of the Zygon spaceship. (TV: Terror of the Zygons)

Behind the scenes
The corporal is named Palmer in the novelisation.