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"Earth's Sister Planet!": Superman seeks to stop an intelligent dinosaur from a sister-world of Earth from destroying the human race and taking over the planet.

Only one species can rule on any planet! Would you and your kind be willing to surrender--be subservient to us?
Klystro

Action Comics #576 is an issue of the series Action Comics (Volume 1) with a cover date of February, 1986.

Synopsis for "Earth's Sister Planet!"

Superman seeks to stop an intelligent dinosaur from a sister-world of Earth from destroying the human race and taking over the planet.

Appearing in "Earth's Sister Planet!"

Featured Characters:

Supporting Characters:

Antagonists:

  • Dinosaurs
    • Klystro (Single appearance; dies)
    • Young Creature (Unnamed) (Single appearance)
    • Solarmaster (Single appearance)
    • Two Guards (Unnamed) (Single appearance)
    • Pterodactyls (Unnamed) (Single appearance)
  • Two Hyvults (Single appearance)

Other Characters:

  • Mark Hayim (astronomer) (Cameo) (Single appearance)

Locations:

Items:

  • Concentrated Power Beam
  • Immobilizer (it increased the power of gravity on Superman's body by more than 10,000 times)
  • Daily Planet Newspaper

Vehicles:

  • Klystro's Spacecraft (Destroyed)
    • Gamma Rays

Concepts:


Synopsis for "The 'Monumental' Menace of Metropolis!"

A trapped alien super-hero switches bodies with Superman in order to attempt to fight off invading aliens.

Appearing in "The 'Monumental' Menace of Metropolis!"

Featured Characters:

Supporting Characters:

Antagonists:

  • Voranians
    • Bara (Flashback and main story) (Single appearance)
    • Parkha (Flashback and main story) (Single appearance)

Other Characters:

  • Citizens of Metropolis (Unnamed)
    • Cab Driver (Unnamed) (Cameo) (Single appearance)
  • Vaalor (Flashback and main story) (Single appearance)

Locations:

Items:

  • Jimmy Olsen's Camera
  • Daily Planet Globe (set on fire)
  • Jimmy Olsen's Signal Watch (the wrist band was super-heated into a lasso)
  • Voran's Weapon (Unnamed)
    • Liquid Metal
  • Statue of Vaalor

Vehicles:

  • Taxi Cab #7134
  • Ultra Sonic Airlines 747 (In ruins)

Notes

  • "Editor's Note: The events depicted in this issue's stories occurred prior to the dramatic developments now appearing in Crisis on Infinite Earths."
  • The Dinosaur's planet was once in the same orbit as Earth's. A comet knocked it out of orbit and the planet was turned into a giant spacecraft to keep the dinosaurs from freezing. The planet was ultimately moved into the same orbit as Venus by Superman.



See Also


Links and References