The Holy Terror is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who.

It is notable for incorporating Frobisher, a regular character from Doctor Who Magazine's comic strip during the mid-1980s.

The Sixth Doctor and Frobisher become involved in a power struggle in a mysterious castle, culminating in a bloodbath.

The Doctor and Frobisher finds themselves involved with a society which strictly adheres to a complex and apparently illogical set of customs.

Drawing inspiration from Shakespearean tragedy as well as exploring unpleasant elements of the father/child relationship and infanticide, this is one of the darker episodes.