Lorne Greene, Michael Landon, Dan Blocker, and Pernell Roberts in Bonanza (1959)

"Bonanza" Michael Landon, Pernell Roberts, Dan Blocker circa 1964

"Bonanza" Lorne Greene, Pernell Roberts circa 1964

Gregory Harrison and Pernell Roberts in Trapper John, M.D. (1979)

"FBI: The Untold Stories" Pernell Roberts

"Bonanza" L. Greene, P. Roberts, D. Blocker, M. Landon 1960 NBC

Lorne Greene, Michael Landon, Dan Blocker, Pernell Roberts, and Victor Sen Yung in Bonanza (1959)

Lorne Greene, Dan Blocker, Michael Davis, Ross Martin, and Pernell Roberts in Bonanza (1959)

"Bonanza" Pernell Roberts, Michael Landon, Lorne Greene, Dan Blocker circa 1960

Ian Abercrombie and Pernell Roberts in The Hardy Boys/Nancy Drew Mysteries (1977)

Pernell Roberts in The Hardy Boys/Nancy Drew Mysteries (1977)

Regis Cordic and Pernell Roberts in The Hardy Boys/Nancy Drew Mysteries (1977)

Dan Blocker and Pernell Roberts in Bonanza (1959)

Stephen Baldwin and Pernell Roberts in The Young Riders (1989)

Nancy Deale and Pernell Roberts in Bonanza (1959)

Hazel Court and Pernell Roberts in Bonanza (1959)

James Coburn, James Best, Pernell Roberts, and Karen Steele in Ride Lonesome (1959)

Randolph Scott, Pernell Roberts, and Karen Steele in Ride Lonesome (1959)

Michael Landon and Pernell Roberts in Bonanza (1959)

Peter Coe and Pernell Roberts in Bonanza (1959)

Lorne Greene, Cameron Mitchell, and Pernell Roberts in Bonanza (1959)

Lorne Greene and Pernell Roberts in Bonanza (1959)