Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Slab | Slab | Slab | Show |
| Slapstick | Slapstick | Slapst… | Show |
| Slash | Slash | Slash | Show |
| Slaymaster | Slaymaster | Slayma… | Show |
| Sleeper | Sleeper | Sleeper | Show |
| Sleepwalker | Sleepwalker | Sleepw… | Show |
| Sligguth | Sligguth | Sliggu… | Show |
| Slipstream | Slipstream | Slipst… | Show |
| Slither | Slither | Slither | Show |
| Slug | Slug | Slug | Show |
| Slyde | Slyde | Slyde | Show |
| Smasher | Smasher | Smasher | Show |
| Smiling Tiger | Smiling Tiger | Smilin… | Show |
| Smokescreen | Smokescreen | Smokes… | Show |
| Smuggler | Smuggler | Smuggl… | Show |
| Snake Marston | Snake Marston | Snake-… | Show |
| Snapdragon | Snapdragon | Snapdr… | Show |
| Snapdragon (Morituri) | Snapdragon | Snapdr… | Show |
| Solarman | Solarman | Solarm… | Show |
| Solarr | Solarr | Solarr | Show |