Sunny Randall is a fictional character created by author Robert B. Parker. She is a private investigator based in Boston, known for her sharp wit and strong sense of justice. Sunny is also a former police officer, which gives her a unique perspective on crime and investigation. In addition to her professional life, Sunny faces personal challenges, including navigating relationships and her own past. The character appears in a series of novels, where she often balances her work with her personal life, showcasing her resilience and determination in solving cases while dealing with her own struggles.