Secretary General

In December 1986, Wigner was the Secretary General of International Space Command, also known as the General Secretary. (TV: The Tenth Planet)

Doris Lethbridge-Stewart received a telephone call for her husband, UNIT General Alistair Gordon Lethbridge-Stewart, from the Secretary General. Upon being told as such, Alistair commented "I don't care if it was the King. I'm still retired". After hanging up, Doris passed a message to Alistair from the Secretary General informing him that the Doctor had returned. (TV: Battlefield)

Immediately following the London UFO crash in March 2006, the Secretary General asked that people watch the skies. (TV: Aliens of London)

During the Year of the Slow Invasion, Kate Stewart of UNIT had the Secretary General informed that the Shakri cubes were impairing people as well as hospitals and equipment. (TV: The Power of Three)

In 2017, a Secretary General of the United Nations asked the Twelfth Doctor for help when a 5,000-year-old pyramid appeared overnight in a the middle of a war zone in Turmezistan. (TV: The Pyramid at the End of the World)