Mr. Freeze

Few villains in DC's rogues gallery have proven as enduringly chilling as Mr. Freeze, who made his Silver Age entrance in Detective Comics #373 back in 1968, brought to icy life by the legendary Gardner Fox and artist Chic Stone. Over nearly six decades of publication — a remarkable span stretching from the late 1960s all the way to 2026 — he has haunted the pages of Detective Comics, Batman, and Batman: Legends of the Dark Knight, cementing himself as one of Gotham's most formidable and fascinating threats. His catalog includes two collector-recognized key issues, a testament to the weight he carries in comics history, and his adventures have placed him alongside some of Batman's most iconic figures: Bruce Wayne, Robin, Penguin, and Poison Ivy, among others. If you're building a serious Gotham-villain reading list, Mr. Freeze belongs near the top — a Silver Age creation with the rare staying power to remain genuinely compelling across generations of storytelling.