| Ruler | Kingdom | Era |
|---|---|---|
| Mr. Confusedfool | Warriors Against Punk Rogues | 48 |
| Mr. Die Foolish Mortals | 48 | |
| Mr. Fabulousfool | 28 | |
| Mr. Fabulousfool | 28 | |
| Mr. Foo Fighter The Foolish | Foundation | 35 |
| Mr. Fool | Mad and Dangerous | 47 |
| Mr. Fool | 48 | |
| Mr. Fool | 48 | |
| Sir Fooled Troll | 47 | |
| Mr. Foolish | 48 | |
| Mr. Foolish Woman | Generation | 48 |
| Mr. Fooll | NEMESlS | 48 |
| Mr. Legless Fool | 48 | |
| Mr. Punchafool | 48 | |
| Loser Quiet Wilberfool One Nicompoop | 48 | |
| Mr. Sanderstein The Fool | Death Dwellers | 48 |
| Mr. Soccerfool | The Jester Empire | 23 |
| Mr. Speak Fool | 48 | |
| Mr. Speak Fool | 48 | |
| Mr. Thefoolishfool | 11 | |
| Mr. Zuall The Fool | 33 | |