Adelphi

Lord Ferain was the Director of Allegiance for the Celestial Intervention Agency.He come to Earth to warn newly exiled doctor about the events.

Biography
The Time Lord first met the Third Doctor when he appeared in his TARDIS while the Doctor was with his companion Liz Shaw. (AUDIO: Shadow of the Past)

The Doctor next met him when he was sent by the Time Lords to tell the Doctor that the Master had arrived on Earth. (TV: Terror of the Autons)

He was sent to see the Doctor again when he was with Sarah Jane Smith in order to persuade the Doctor not to travel with a future companion who the Doctor had not yet taken onboard the TARDIS. (PROSE: An Overture Too Early)

He later had Leela arrested after she used Castellan codes to investigate the House of Lungbarrow on Gallifrey. (PROSE: Lungbarrow)

Profile
He was dressed as an English businessman, complete with bowler hat and umbrella. His disguise was somewhat compromised by his first being seen to hover in mid-air, due to his co-ordinates having "slipped". He warned the Doctor that his (the Doctor's) old enemy,, had arrived on Earth and might try to kill him. (TV: Terror of the Autons)

Behind the scenes
Ferain's name was not mentioned in the serial but The Doctor described Valyes in the Genesis of the Daleks as the Time Lord messenger from his past adventures infact he was disguised as Lord Ferain.