Actor Randolph Mantooth has passed away at the age of 80 after a long illness, according to his family. He was known for his role as John Gage in the NBC series "Emergency!".

Mantooth's role in the show, which aired from 1972 to 1977, helped change the public's perception of first responders on television. The series is credited with inspiring many to pursue careers in emergency medical services and firefighting.

Further details about Mantooth's life and legacy can be found through NBC 5 Dallas-Fort Worth.