Peter Mills

Former Firefighter Candidate/Firefighter/Paramedic in Charge (PIC) Peter Mills, Truck 81, Squad 3, Ambulance 61 (seasons 1–3). Mills began as a candidate on Truck 81. After proving his capabilities as a firefighter, he earned a spot on Squad 3. However, he was transferred to Ambulance 61 when he lost his firefighter certification after an illness. Mills recovered and finally got his spot back on the squad – just as his mother and sister decided to take over his grandfather's restaurant in North Carolina. Despite saving a life on his first call back with the team, Mills realized it was time to choose his real family over his work one and left Chicago in "You Know Where to Find Me" to work with his family in North Carolina.