Darkel presided over the Sixth Doctor's trial on the Time Lord Space Station Zenobia. The Valeyard acted as prosecutor. (TV: The Mysterious Planet, TV: Mindwarp) The Doctor acted as his own defence lawyer. (TV: Terror of the Vervoids) An honest woman, Darkel presided over a show trial meant to draw attention away from the corrupt High Council. With political unrest demanding a new Lord President and the Doctor unwilling to take the job himself, he gave a symbolic vote of confidence to Darkel before departing in his TARDIS. (TV: The Ultimate Foe)