He was chosen to play paramedic John Gage in the 1970s medical drama, "Emergency!" (opposite Robert Fuller as Dr. Kelly Brackett, Julie London as Nurse Dixie McCall, Bobby Troup as Dr. Joe Early and Kevin Tighe as Roy DeSoto). The show aired six seasons (129 episodes) and six two-hour television movie specials. Randolph Mantooth has spoken regularly at Firefighter and EMS conferences and symposia across the United States while maintaining an active acting career. He is a spokesperson for both the International Association of Firefighters and the International Association of Fire Chiefs [IAFC for firefighter health and safety, and honored over the years with numerous awards and recognition.