Quivering Heap is episode 24 of Round The Twist.
Pete has the lead role in the school play as Dracula. A jealous James with the help of Tiger and Rabbit lock Pete in a toilet so that he'll miss the play so he doesn't get to suck Fiona's neck.
The toilet is haunted by a ghost who desperately needs to convince the Inspector that he can really scare people in order to get promoted to a better home, but Pete isn't so easily scared by ghosts.
- Richard Moir as Tony Twist
- Ben Thomas as Pete Twist
- Joelene Crnogorac as Linda Twist
- Jeffrey Walker as Bronson Twist
- Robyn Gibbes as Fay James
- Bunney Brooke as Helen Rickards
- Mark Mitchell as Harold Gribble
- Jan Friedl as Cecilia Gribble
- Richard E. Young as James Gribble
- Nick Mitchell as Tiger Gleeson
- Drew Campbell as Rabbit
- Zeta Briggs as Fiona Richmond
- Esben Storm as Ralph Snapper
- Andrew Daddo as Ghost Matthew
- Neill Gladwin as Ghost Jeremiah
- Jasper Bagg as Punk Ghost
- John Frawley as Inspector Ghost
- Clinton Botha as Audio Boy
- Camilla Threadgold as Student
- David Hunt as Policeman
- Based on the short story "Inside Out" from Unbelievable!.