Showcase — DC Comics, National Periodical Publications
Issue: #15
Last valuation update: 2025-12-19
“THE GREAT PLUTONIUM PLOT.” A renegade scientist is stealing all the plutonium in the galaxy. He hopes to rule the solar system with his "Teleportator," but needs the radioactive element to power it. Unfortunately for him, he must go through Space Ranger to get it. Plus, “THE ROBOT PLANET.”The Great Plutonium PlotSpace Ranger fighting Martian piratesThe interplanetary liner Asterex, travelling bet...
First appearances: Cryll, Thaddeus Starr, Space Ranger
Creators: Gardner Fox, Jack Schiff, Edmond Hamilton, Bob Brown
Characters: Cryll, Thaddeus Starr, Myra Mason, Space Ranger