Superstar was a sentient stellar system, living sometime in the future. Dedicated to living up to the legacy started by Superman, it travels the galaxy, dealing with threats no normal lifeform could deal with. It's far too large to enter the Fortress of Solidarity in person. ("Grounded")
| the Superman family | ||
| Present-Day | Superman • Supergirl (Super-Girl • Kara Zor-El • Matrix/Linda Danvers • Cir-El) • Superboy • Steel (John Henry Irons • Natasha Irons) • Eradicator | |
| Villains | Cyborg Superman • Superboy-Prime • Superwoman (Kristen Wells • Lucy Lane) | |
| Animals | Krypto • Beppo • Titano • Comet • Streaky • Fuzzy | |
| Future | Superman X • Willigig • Superstar • Superego • Supercilia • Titano • Kan • Layna • Superman of Xudar | |