| 100% | HEMAN | 5 | Defender of Castle Grayskull and foe of Skeletor |
| 39% | HEMAN | 5 | Foe of Skeletor in "Masters of the Universe" |
| 39% | HEMAN | 5 | Castle Grayskull defender, canonically |
| 38% | ARES | 4 | Greek god and foe of Wonder Woman |
| 38% | ASHE | 4 | Foe of Laver and Newcombe |
| 38% | DRACO | 5 | Foe of Harry and Ron |
| 38% | BORIS | 5 | Foe of Rocky and Bullwinkle |
| 38% | ASHE | 4 | Foe of Laver and Nastase |
| 38% | BORIS | 5 | Foe of "moose and squirrel" |
| 38% | ALI | 3 | Foe of Foreman and Frazier |
| 38% | ALI | 3 | Foe of Frazier and Foreman |
| 38% | NATASHA | 7 | Foe of Rocky and Bullwinkle |
| 38% | RICHELIEU | 9 | French cardinal and foe of The Three Musketeers |
| 37% | UTE | 3 | Foe of the Navajo and Arapaho |
| 37% | DICKTRACY | 9 | Foe of Big Boy and Little Face |
| 37% | PACMAN | 6 | Foe of Blinky, Pinky, Inky, and Clyde |
| 37% | PACMAN | 6 | Foe of Blinky, Pinky, Inky and Clyde |
| 36% | BADENOV | 7 | Boris, foe of Rocky and Bullwinkle |
| 36% | NATASHA | 7 | Pottsylvanian foe of Rocky and Bullwinkle |
| 36% | SECRETENTRANCES | 15 | Features of tree forts and castles |
| 35% | MOATS | 5 | Features of Angkor Wat and Leeds Castle |
| 35% | CAMELOT | 7 | Legendary castle and court of King Arthur |
| 35% | CARDIFF | 7 | Capital of Wales and site of a castle |
| 35% | OBRIEN | 6 | "Nineteen Eighty-Four" foe of Winston and Julia |
| 35% | MEDIEVAL | 8 | Pertaining to the time of castles and knights |
| 34% | BALMORAL | 8 | Castle and residence of the royal family in SW Aberdeenshire, Scotland |
| 34% | BALMORAL | 8 | Castle and residence of the royal family in southwest Aberdeenshire, Scotland |
| 34% | MONSARRAT | 9 | Nicholas —, author of novels Castle Garac and The White Rajah |
| 33% | KAFKA | 5 | Franz ___, author of "The Trial" and "The Castle" |
| 33% | NAWORTH | 7 | — Castle, home of the Dacre and Howard families northeast of Carlisle, Cumbria |