Circuit Breaker

Josie Beller is a young engineer left paralyzed after a Transformer attack destroys the ship she's aboard. She builds a cybernetic suit woven into her own nervous system that lets her generate and control electricity, dedicating herself to destroying all Transformers indiscriminately.

Bursting onto the scene in Secret Wars II #3 in 1985, Circuit Breaker is one of Marvel's more intriguing Bronze Age creations, born from the collaborative vision of Jim Shooter and Al Milgrom. Her story has unfolded primarily across the pages of The Transformers, where she shares the stage with some of the most iconic mechanical warriors in pop culture — Optimus Prime, Megatron, Starscream, Shockwave, and Wheeljack — making her corner of the Marvel Universe genuinely electric. The fact that her presence has been collected and revisited across roughly four decades, from 1985 all the way into the 2020s, speaks to a lasting resonance that casual fans might not expect from a character outside the main superhero line. If you've never explored Marvel's Transformers era, Circuit Breaker is a compelling reason to start digging.