​From Wikipedia, the free encyclopedia.   John Dunsworth (born April 12, 1946) is a Canadian actor known for playing the frequently drunk trailer park supervisor Jim Lahey on the hit TV show Trailer Park Boys. He has also appeared in Shattered City: The Halifax Explosion, a CBC film about the 1917 Halifax explosion. Dunsworth also has extensive experience in regional theatre. Description above from the Wikipedia article John Dunsworth,  licensed under CC-BY-SA, full list of contributors on Wikipedia.