Keith MacKechnie was born on 31 May 1955 in Brooklyn, New York, USA. His birth name was Keith Eugene MacKechnie.

Keith MacKechnie appeared in the movie A Sight for Sore Eyes(2004), Big Girls Don't Cry... They Get Even(1992), Dark Blue(2002), Pontiac Moon(1994), Straight Talk(1992), Three of Hearts(1993)。