Petty Officer Third Class Chelsey Vanille Corvinus (born August 3rd, 2513) was an accomplished Nurse, Bio-engineer and Physiologist of the Unified Earth Government who later enlisted as a Hospital Corpsman several months after the start of the Human-Covenant War. She was usually referred to as Chellie or Cherry Vanilla by her closest friends and Corvinus by her commanding officers. Due to her advanced knowledge of medical technologies and her inherent need to save people, "Chellie" had proven herself to be a valuable member to any group she was assigned to. Participating in and having survived the Great War, Chelsey had seen war at its fullest and was terrified at the pain and destruction it wrought.