Chief Officer

The Chief Officer of Varos was in league with Sil to have the Governor of Varos replaced with one who would agree to keep the prices of Zeiton-7 low. He tried to have the Sixth Doctor killed, but he and Quillam were themselves killed by deadly vines in the Punishment Dome. (TV: Vengeance on Varos)

Behind the scenes
Tony Caunter, Tom Chadbon, Peter Childs, Michael Culver, James Ellis, Tom Georgeson, John Hallam, Terrence Hardiman, Don Henderson, John Hollis, Ronald Lacey, Edward Peel, Clifford Rose, John Savident, George Sewell, Patrick Stewart, Donald Sumpter and Malcolm Tierney were considered for the role before Forbes Collins was cast.