Best remembered as Adam, the dark, often black-clad eldest son of Ben Cartwright (Lorne Greene) on the hit TV series "Bonanza". Tall and trim, with a hint of 1950s rebelliousness behind his responsible facade, Roberts provided an interesting counterpoint to his screen brothers, Dan Blocker's hulking, genial Hoss and Michael Landon's engagingly callow Little Joe. His contract ended after six years…
See Full Pernell Roberts Biography