Grace Guiness

Grace Guiness operates in the shadowy espionage world of Checkmate, DC's Cold War intelligence agency, rubbing shoulders with figures like Harry Stein and Harvey Bullock. Her exact role within that organization remains largely unexplored, making her one of the more enigmatic figures from that milieu.

A quietly compelling presence from DC's late-1980s espionage corner, Grace Guiness made her debut in Action Comics #598 in 1988, brought to life by the formidable creative team of Paul Kupperberg and John Byrne. She moves through the shadowy world of Checkmate — DC's cold-war thriller milieu — keeping company with the likes of Harry Stein, Black Thorn, and Harvey Bullock. With only a handful of catalog appearances, she's a rare find for Copper Age completists who love digging into the dense, morally complex spy fiction DC was quietly perfecting at the time.