Career
He played college football at Purdue University. Karras was drafted 32nd in the third round of the 1950 NFL draft. He had two younger brothers, former pro football player Theodore Karras and former pro-football player/actor Alex Karras.
He enjoyed a successful college career at Purdue.
He was a three-year starter (1946, 1948-1949), was selected 2nd Team All-Big Ten in 1949. He was named the Most Valuable Player for Purdue in 1949.
Following his college career, Lou was selected for the 1949 East-West Shrine Game, the 1950 Chicago-based College All-Star Game and the 1950 Hula Bowl. After his professional football career ended, he founded a successful tire business.
He was also on the city council of Gary, Indiana.