| Ruler | Kingdom | Era |
|---|---|---|
| Mr. Darth Karla | 48 | |
| Mr. Generalkarl | 48 | |
| Mr. Karl | 48 | |
| Mr. Karl Heinrich Marx | The Brotherhood | 47 |
| Mr. Karl Heinrich Marx | Relentless | 47 |
| Mr. Karl Heinrich Marx | 47 | |
| Mr. Karl Heinrich Marx | The Brotherhood | 48 |
| Mr. Karl I | 48 | |
| Mr. Karl Marx | Union of Independence | 47 |
| Mr. Karl Marx | Union of Independence | 47 |
| Mr. Karl Marx | Union of Independence | 47 |
| Mr. Karl Marx | Union of Independence | 48 |
| Mr. Karl Marx | Union of Independence | 48 |
| Mr. Karl Stuben Graf Von Freidburg | Lietuvos Tarybu Socialistine Respublika | 38 |
| Mr. Karl The XII | 47 | |
| Mr. Karl VI | 48 | |
| Mr. Karl VII | 48 | |
| Ms. Karla | Angels | 28 |
| Ms. Karla | Angels | 28 |
| Mr. Karlanien | 48 | |
| Mr. Karlanien | 48 | |
| Mr. Karlen | 48 | |
| Ms. Karlfu | 48 | |
| Mr. Karll Brokkr | 48 | |
| Mr. Karlos | 37 | |
| Mr. Karlos | 47 | |
| Mr. Karlos | 47 | |
| Mr. Ralphkarlik | 48 | |
| Mr. Trollkarl | Baby Eaters | 47 |