| Jay Garrick(expression, person, character, comics) |
| John Stewart(expression, person, character, comics) |
| Jon Kent(expression, person, character, comics) |
| Josiah X(expression, character, comics, marvel) |
| Jughandle(noun, character, comics, marvel) |
| Kaine(noun, person, character, comics) |
| Kasper Cole(expression, character, comics, marvel) |
| Kestrel(noun, character, comics, marvel) |
| Knight(noun, person, character, comics) |
| Kyle Rayner(expression, person, character, comics) |
| Leonardo(noun, person, character, comics) |
| Lightbright(noun, character, comics, marvel) |
| Lightning(noun, character, comics, dc) |
| Lightray(noun, person, character, comics) |
| Longstrike(noun, character, comics, marvel) |
| M'Shulla(noun, character, comics, marvel) |
| Maggott(noun, character, comics, marvel) |
| Man-Ape(noun, character, comics, marvel) |
| Martian Manhunter(expression, person, character, comics) |
| Maxam(noun, character, comics, marvel) |