Ed Marinaro (born March 31, 1950) is an American actor and former professional football running back who played in the National Football League (NFL) for the Minnesota Vikings. He played college football for the Cornell Big Red, where he was a unanimous All-American and won the Maxwell Award in 1971. From 2010 to 2011, Marinaro starred in the football comedy series Blue Mountain State. He is also known as a regular cast member of Hill Street Blues, playing Officer Joe Coffey for five seasons (1...