A New York police detective of 1953 who, alongside his partner Burt Ryan, torments the writer Benny Russell and joins in beating him after the shooting of Jimmy.
Kevin Mulkahey appears in Far Beyond the Stars, played by Jeffrey Combs, better known on the series as Weyoun and Brunt.
He exists within the vision in which Benjamin Sisko lives the life of Benny Russell, a black writer for a science fiction magazine in 1953. Mulkahey and Burt Ryan stop Benny on the pavement outside the magazine's office and question him with open contempt, letting him go only with a warning.
The detectives return at the story's turning point. Benny hears shots, finds Jimmy lying dead in the street and learns that the two officers killed him. When Benny tries to reach the body, Mulkahey and Ryan set upon him with fists and boots. As the blows fall Benny briefly sees them as Weyoun and Dukat.