Documentary about Thomas Edwards, better known as Yr Hwntw Mawr, a murderer and the last murderer to be publicly hanged in Merionethshire.
| Actor | Role |
|---|---|
| JJohn Pierce JonesThomas Edwards | Thomas Edwards |
| LLindsay EvansHugh Jones | Hugh Jones |
| EElfed DafisJohn Williams | John Williams |
| AAlaw Bennet JonesMary Jones | Mary Jones |
| EEirlys EckleyCatherine Roberts | Catherine Roberts |
| DDafydd ClwydJohn Roberts | John Roberts |
| TTelor HeddBoy | Boy |
| RRhys RichardsConstable 1 | Constable 1 |
| MMaldwyn LloydConstable 2 | Constable 2 |
| HHywel Teifi EdwardsPresenter | Presenter |