Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Unicorn | Unicorn | Unicorn | Show |
| Union Jack | Union Jack | Union-… | Show |
| Union Jack (Joseph Chapman) | Union Jack | Union-… | Show |
| Unus the Untouchable | Unus the Untouchable | Unus-t… | Show |
| Ursa Major | Ursa Major | Ursa-M… | Show |
| U.S. Agent | U.S. Agent | U-S-Ag… | Show |
| Valkyrie | Valkyrie | Valkyr… | Show |
| Valkyrie (Brunnhilde) | Valkyrie | Valkyr… | Show |
| Val Rhymin | Val Rhymin | Val-Rh… | Show |
| Vampire by Night | Vampire by Night | Vampir… | Show |
| Vance Astro | Vance Astro | Vance-… | Show |
| Vance Astrovik | Vance Astrovik | Vance-… | Show |
| Vanisher | Vanisher | Vanish… | Show |
| Velocidad | Velocidad | Veloci… | Show |
| Vengeance | Vengeance | Vengea… | Show |
| Venom | Venom | Venom | Show |
| Venom (Flash Thompson) | Venom | Venom-… | Show |
| Venomm | Venomm | Venomm | Show |
| Venom (Mac Gargan) | Venom | Venom-… | Show |
| Venus | Venus | Venus | Show |