Castellan (The Death of Hope)

The Castellan was part of the team who brought the Eighth Doctor to Narvin after Narvin had the Doctor's TARDIS brought to Gallifrey, so he could show him what had been doing with Sally Armstrong and Molly O'Sullivan on Heron's World via the Matrix.

They later brought tea to the Doctor and Narvin at Narvin's request, which the Doctor angrily rejected. (AUDIO: The Death of Hope)