Casino hat-check girl and former girlfriend of crooked cop Chuck Blayden. Initially believed to have committed suicide via gas, she is later revealed to have been poisoned. Johnny's attempt to return the watch to her sets off the central conflict.
Koch professionally investigates Harriet's death, uncovering the murder.
Johnny uses Harriet as a messenger to reject Nelle, creating an indirect romantic entanglement.
Explore the full interactive character relationship map of Johnny O'Clock