Marvel
| Name | Super Name | Code | Actions |
|---|---|---|---|
| Julie Power | Julie Power | Julie-… | Show |
| Juggernaut | Juggernaut | Jugger… | Show |
| Jude the Entropic Man | Jude the Entropic Man | Jude-t… | Show |
| Jubilee | Jubilee | Jubilee | Show |
| J'son | J'son | J-son | Show |
| Joystick | Joystick | Joysti… | Show |
| Josiah X | Josiah X | Josiah… | Show |
| Joseph | Joseph | Joseph | Show |
| Jonas Harrow | Jonas Harrow | Jonas-… | Show |
| Jolt | Jolt | Jolt | Show |
| Jolen | Jolen | Jolen | Show |
| John the Skrull | John the Skrull | John-t… | Show |
| John Ryker | John Ryker | John-R… | Show |
| Johnny Dee | Johnny Dee | Johnny… | Show |
| John Jameson | John Jameson | John-J… | Show |
| John Carik | John Carik | John-C… | Show |
| Jocasta | Jocasta | Jocasta | Show |
| Joanna Cargill | Joanna Cargill | Joanna… | Show |
| Jimmy Woo | Jimmy Woo | Jimmy-… | Show |
| Jetstream | Jetstream | Jetstr… | Show |