Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Lady Deathstrike | Lady Deathstrike | Lady-D… | Show |
| Lady Bullseye | Lady Bullseye | Lady-B… | Show |
| Lacuna | Lacuna | Lacuna | Show |
| Kylun | Kylun | Kylun | Show |
| Kurse | Kurse | Kurse | Show |
| Kulan Gath | Kulan Gath | Kulan-… | Show |
| Kro | Kro | Kro | Show |
| Kristoff Vernard | Kristoff Vernard | Kristo… | Show |
| Kraven the Hunter (Ana Kravinoff) | Kraven the Hunter | Kraven… | Show |
| Kraven the Hunter (Alyosha Kravinoff) | Kraven the Hunter | Kraven… | Show |
| Kraven the Hunter | Kraven the Hunter | Kraven… | Show |
| Krang | Krang | Krang | Show |
| Kraken | Kraken | Kraken | Show |
| Korvus | Korvus | Korvus | Show |
| Korvac | Korvac | Korvac | Show |
| Korg | Korg | Korg | Show |
| Korath the Pursuer | Korath the Pursuer | Korath… | Show |
| Komodo | Komodo | Komodo | Show |
| Kleinstocks | Kleinstocks | Kleins… | Show |
| Klaw | Klaw | Klaw | Show |