List of DC Comics characters: X X X

| Name_ | Original_Publisher | First_Appearance | Year_ | Date_ |
|---|---|---|---|---|
| X` Hal | DC Comics | The New Teen Titans , Vol. 1, #24 | 1982 | October |
| X-21 | DC Comics | Action Comics , Vol. 1, #333 | 1966 | February |
| X-24 | DC Comics | The New Titans , Vol. 1, #73 | 1991 | February |
| X-2-Y | DC Comics | Action Comics , Vol. 1, #344 | 1966 | December |
| X-5 Super Agent | Quality Comics | Hit Comics , Vol. 1, #1 | 1940 | July |
| X | Quality Comics | Military Comics , Vol. 1, #1 | 1942 | March |
| Xadu, Doctor | DC Comics | Adventure Comics , Vol. 1, #283 | 1961 | April |
| Xanna | Gorilla Comics / DC Comics | Empire , Vol. 1, #1 | 2000 | May |