Thom Kallor

Thom Kallor, hailing from the planet Xanthu in the 30th century, possesses the natural ability to manipulate the density and mass of objects, which earned him membership in the Legion of Super-Heroes as Star Boy.

Few characters capture the sweep of DC's Silver Age quite like Thom Kallor, who first stepped onto the page in Adventure Comics #310 in 1963, conjured by the legendary Edmond Hamilton and artist John Forte. A fixture of the far-future DC universe across an remarkable six-plus decades, Thom has racked up 81 catalog appearances — seven of them collector-recognized key issues — spanning Adventure Comics, Tales of the Legion of Super-Heroes, and The Legion of Super-Heroes itself. Along the way he's shared adventures with some of the 30th century's most iconic figures: Saturn Girl, Ultra Boy, Jo Nah, and Green Lantern among them. For fans who love the grand, optimistic tradition of DC's cosmic storytelling, Thom Kallor is a thread that runs all the way from the Kennedy-era Silver Age to the present day — a testament to just how enduring that visionary corner of the DC universe truly is.