The Making of The Trial of a Time Lord: Part Three - Terror of the Vervoids

 was the third of four documentaries in the Making of The Trial of a Time Lord series. As the name suggested, it concerned itself with the making of Terror of the Vervoids.

Topics discussed
The documentary opened with a discussion of the narrative construction of the piece, underlining the difficulties of crafting a satisfying whodunit. Pip and Jane Baker then went into some detail of how and why they decided to use plants as the central enemy. Director Chris Clough then offered commentary on how difficult it was to realise the Vervoids.

The discussion then turned to casting. Various interviewees went on to discuss the merits of Bonnie Langford as Mel, who debuted in this story. Clough then seguéd into a broader discussion on casting, with some emphasis on the working with Honor Blackman, Michael Craig and Arthur Hewlett.

Hickman and Sangster then had a brief discussion on the general sameness of the cliffhangers in the serial.

Various respondents then gave wide-raning opinions on the set design of the piece, praising some sets and criticising others.

The documentary then concluded with Hickman's humourous criticism of the trial portion of episode 4, in which the former Doctor Who Magazine chief questioned whether the Gallifreyan legal system could reasonably allow for the changing of the charges against the Sixth Doctor in the midst of the trial.