Time Lord messenger (Terror of the Autons)

An incarnation of Adelphi served as the Time Lords' messenger to the Doctor.

Biography
Following the incarnation who served as a member of the Tribunal, (TV: The War Games) Adelphi served as a messenger to the Third Doctor during his exile. (TV: Terror of the Autons) In this capacity, he first encountered the Doctor when he appeared in his TARDIS while the Doctor was with his companion Liz Shaw. (AUDIO: Shadow of the Past)

After the Doctor's defeat of Helios, Adelphi spoke to the wardens of Shada, requesting that they release to keep the Doctor busy on Earth. (PROSE: Prisoners of the Sun) He then travelled to Earth to warn the Doctor of the Master's arrival and of an impending trap that the Master had set for him. When the Doctor asked for assistance in dealing with the trap, however, Adelphi simply disappeared. (TV: Terror of the Autons)

He was sent to see the Doctor again in order to persuade him not to investigate the death of a future companion whom the Doctor had not yet taken on board the TARDIS, (PROSE: An Overture Too Early) and also told the Sixth Doctor about the many different versions of Peri Brown that were in the universe after the High Councils interfered with events of Thoros-Beta. (AUDIO: Peri and the Piscon Paradox)