Time Lord (The Three Doctors)

After a report on the Doomsday Weapon went missing from the Time Lords' files, a group of Time Lords in the Citadel on Gallifrey, including this one, decided to send the Third Doctor to the planet Uxarieus to investigate. (DW: Colony in Space)

Some time later this same Time Lord assisted in a control room during the crisis that required the help of the first three incarnations of the Doctor. (DW: The Three Doctors)