Happy Harry is the owner of Happy Harry's Bar and Grill where Rorschach often visits while investigating the underworld. Harry seems to be afraid of Rorschach and his violent temperament, as seen when interrogating a man named Steve about Comedian's death.
Behind the scenes
Happy Harry's bowtie has two white spots, making it resemble a domino mask in the same was as those of two men in the Rafael's restaurant where Dan Drieberg and Laurie Juspeczyk are dining. These two men have long been rumored to be Captain Metropolis and Hooded Justice, having faked their deaths.