Who was or is the oldest NFL quarterback of all time?

George Blanda was the oldest quarterback of all time. He was the oldest to start a football game as a QB at the age of 43 years old, and then he played as a placekicker until he was 48 years, 109 days old. He played 26 seasons in the NFL, although he does not hold the consecutive starts records - rather now Minnesota Vikings quarterback, Brett Favre, does.