| Ruler | Kingdom | Era |
|---|---|---|
| Mr. Adun Oakenshield | Blood And Sand | 48 |
| Mr. Bingo Noakes | WTF | 47 |
| Lady Blood Soaked Madness | The Ravage Regime | 44 |
| Mr. Gary Oak | 48 | |
| Mr. Gary Oak | 48 | |
| Mr. Hakoak | 21 | |
| Mr. Hakoak | Spaghetti | 22 |
| Mr. James Doakes | Forgotten Warriors | 47 |
| Mr. Lemoncloak Greenbeard | Forget Everything and Run | 46 |
| Ms. Lightrooak | 48 | |
| Mr. Nauda Strongoak | 38 | |
| Sir Oak | The Illuminati Empire | 17 |
| Mr. Oakenshield | The Confederacy | 48 |
| Mr. Oakley | 48 | |
| Mr. Poison Oak | 48 | |
| Mr. Porfessor Oak II | 48 | |
| Mr. Pro Oak III | 48 | |
| Mr. Professor Oak | Regni Decus | 47 |
| Mr. Professor Oak | Regni Decus | 48 |
| Mr. Professor Oak | 48 | |
| Mr. Smooak | 48 | |
| Mr. Thoak V Bronzebeard | 48 | |
| Mr. Thorin Oakehield | Terran Federation | 47 |
| Mr. Thorin Oakenshield | Terran Federation | 47 |
| Mr. Thorin Oakenshield | Forget Everything and Run | 47 |
| Mr. Thorin Oakentwig | Dreadgod | 48 |
| Mr. Tristoak | 48 | |
| Ms. Valiinah Waroak | 12 | |
| Hentai Whitecloak | Revelation | 44 |