Complex sentence: Dennis Letts (September 5,1934-February 22,2008) was a retired American college professor and stage actor who made his Broadway theater debut in December 2007 in the production of, which was written by his son, playwrite Tracy Letts.
Split into simpler sentences: Dennis Letts (September 5,1934-February 22,2008) was a retired American college professor and stage actor. Letts made his Broadway theater debut in December 2007 in the production of, which was written by his son, playwrite Tracy Letts.