Biotron

Biotron is a robotic companion and loyal crew member of the Micronauts, a band of adventurers from the Microverse. Serving alongside Arcturus Rann and allies like Marionette, Acroyear, and Bug, Biotron acts as a steadfast mechanical partner to the similarly robotic Microtron.

Biotron made a striking entrance into the Marvel Universe in 1979, debuting in the pages of Godzilla during the Bronze Age before finding a true home in the beloved Micronauts series — one of that era's most imaginative and fondly remembered titles. Over a span stretching across nearly five decades, this character has kept remarkable company, sharing adventures with fan favorites like Arcturus Rann, Marionette, Acroyear, Bug, and Microtron. Whether you're a longtime devotee of the Micronauts or a Bronze Age explorer hunting for hidden gems, Biotron is a rewarding piece of Marvel history well worth tracking down.