| 100% | THOMASPERCY | 11 | Constable of Alnwick Castle, conspirator in the Gunpowder Plot of 1605 |
| 48% | GUYFAWKES | 9 | Figurehead of the English Gunpowder Plot of 1605 |
| 46% | GUYFAWKES | 9 | York-born conspirator executed in 1606 for his role in the Gunpowder Plot |
| 45% | CATESBY | 7 | Robert —, leader of the 1605 Gunpowder Plot |
| 39% | GUY | 3 | Fawkes of the Gunpowder Plot |
| 39% | CATESBY | 7 | Robert __, ringleader of the Gunpowder Plot |
| 38% | GUYFAWKES | 9 | Gunpowder Plot planner of 1605 |
| 38% | GUYFAWKES | 9 | Gunpowder Plot participant of 1605 |
| 38% | WINDSOR | 7 | ___ Castle, royal residence in the English county of Berkshire |
| 35% | HEISTS | 6 | Plot devices in the films "Thief" and "King of Thieves" |
| 35% | OMARA | 5 | Jason of "The Man in the High Castle" |
| 35% | PARAVEL | 7 | Cair __; fictional castle in the kingdom of Narnia |
| 35% | GLIN | 4 | Castle in Limerick, home of the FitzGerald family |
| 34% | BALLATER | 8 | Burgh in Aberdeenshire on the River Dee east of Balmoral Castle |
| 33% | GIANTDESPAIR | 12 | Owner of Doubting Castle in John Bunyan allegory The Pilgrim's Progress |
| 33% | BELVOIR | 7 | — Castle, stately home in Leicestershire; seat of the Duke of Rutland |
| 33% | ONE | 3 | ___ Ring, central plot element in "The Lord of the Rings" |
| 33% | WELSHPOOL | 9 | Market town in Powys, Wales, on the River Severn north of Powis Castle |
| 33% | DENBIGH | 7 | Market town in the Vale of Clwyd, N Wales housing a ruined castle |
| 33% | BALMORAL | 8 | Castle and residence of the royal family in SW Aberdeenshire, Scotland |
| 33% | BALMORAL | 8 | Castle and residence of the royal family in southwest Aberdeenshire, Scotland |
| 33% | GLAMIS | 6 | — Castle, ancestral seat of the Lyons family in E Scotland |
| 33% | GLAMIS | 6 | — Castle, ancestral seat of the Lyons family in eastern Scotland |
| 33% | GUNPOWDER | 9 | Explosive dust, part of a 1605 plot in England |
| 33% | ORT | 3 | Schloss ___, castle once in the possession of Frederick III, Holy Roman Emperor, and located on Traunsee Lake, Austria |
| 32% | DENVER | 6 | Capital of the Neutral Zone in Amazon's "The Man in the High Castle" |
| 32% | SKIBO | 5 | — Castle, former home in Sutherland, Scotland of Andrew Carnegie overlooking the Dornoch Firth |
| 32% | HERSTMONCEUX | 12 | — Castle, site in East Sussex of The Royal Greenwich Observatory from 1948-90 |
| 32% | ALCAZAR | 7 | Moorish castle or palace in Spain such as the — of Segovia |