Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Silver Surfer | Silver Surfer | Silver… | Show |
| Silver Samurai | Silver Samurai | Silver… | Show |
| Silver Sable | Silver Sable | Silver… | Show |
| Silvermane | Silvermane | Silver… | Show |
| Silver Fox | Silver Fox | Silver… | Show |
| Silver Dagger | Silver Dagger | Silver… | Show |
| Silverclaw | Silverclaw | Silver… | Show |
| Silk Fever | Silk Fever | Silk-F… | Show |
| Silk | Silk | Silk | Show |
| Silhouette | Silhouette | Silhou… | Show |
| Silencer | Silencer | Silenc… | Show |
| Sif | Sif | Sif | Show |
| Siena Blaze | Siena Blaze | Siena-… | Show |
| Siege (John Kelly) | Siege | Siege-… | Show |
| Sidewinder | Sidewinder | Sidewi… | Show |
| Shuma-Gorath | Shuma-Gorath | Shuma-… | Show |
| Shroud | Shroud | Shroud | Show |
| Shriker | Shriker | Shriker | Show |
| Shriek | Shriek | Shriek | Show |
| Shrew | Shrew | Shrew | Show |