Dunn was drafted by the Pittsburgh Steelers in 1976 following a stellar career at the University of Miami. He was a mainstay on the vaunted Steelers' defense for 12 seasons, serving as team captain four years. The two-time Super Bowl champion is ranked ninth in the Steelers' all-time sacks list, having taken-down such legendary Hall of Fame quarterbacks as Joe Namath, Bob Griese and Jim Kelly.
Dunn and his wife Caron live in Tavernier, Florida with their two children, Iris and Eddie. They own Oceanview Inn & Pub in Islamorada, Florida.