One of America’s most respected and prolific actors since the mid-1980s, Brian Dennehy was a supporting actor and occasional leading man whose work in film, television and on stage earned him numerous awards. Filmgoers first took notice of the powerfully built actor as the villainous sheriff in “First Blood” (1982), but in the years that followed, Dennehy showed his versatility in everything from classical drama to science fiction and even broad comedy....