Peter Graves and James Arness, respectively stars of iconic TV shows 'Mission Impossible' and 'Gunsmoke,' were actually brothers. That's part of what makes the photos to follow so striking.

Also in his autobiography, James revealed that it was his younger brother, actor Peter Graves, who told him, “At the University of Minnesota I took radio drama and announcing. It was great.

Upon graduation he came to Hollywood, where his older brother James Arness was already starring in “Gunsmoke.” Graves’ first film was 1951’s “Rogue River.” ...