Corny Kelleher is the assistant at H.J. O’Neill’s funeral parlor, but he also works as a police informant on the side. He helps conduct Dignam’s funeral in “Hades,” appears briefly in “Wandering Rocks,” and helps break up Stephen’s fight with Private Carr in “Circe.” During this last scene, he and Bloom acknowledge the awkwardness of seeing each other in nighttown—but it’s unclear whether Corny is there for police business or personal pleasure.