Kruschen was born on March 20, 1922 in Winnipeg, Manitoba, Canada. He was married to Marjorie Ullman from 1947 until they divorced in 1961. Then he was married to Violet Rafaella Mooring from 1962 until her death in 1978. Then he was married to Mary Pender from 1979 until his death in 2002.
Kruschen died on April 2, 2002 in Chandler, Arizona from natural causes, aged 80.