| 0–9 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z |
| Name | Description | 1st App in Aquaman |
|---|---|---|
| X | ||
| X-22 | The fake agent number given to Aquaman by the Barnacle Gang when he loses his memory. | Adventure #249 (1958) |