Broton

Warlord Broton was a Zygon commander and leader of the Zygon ship that crash-landed in the Devil's Punchbowl in Scotland in the 12th century. He kidnapped and took the form of the Duke of Forgill in Scotland in the lead-up to the World Energy Conference. While at the conference, he was shot and killed by the Brigadier. (TV: Terror of the Zygons)