John Anderson was an American actor who had a prolific career in both film and television spanning four decades.  He appeared in over 500 roles in film and television, frequently appearing in recurring roles, including in "The Twilight Zone" (1959–1964).  Anderson is perhaps best remembered for his television role as Harry Jackson, MacGyver's grandfather, in the popular Richard Dean Anderson series.  Anderson portrayed President Abraham Lincoln twice, in "The Lincoln Conspiracy" (1977) and in the series "The Voyagers!" (1980), and he portrayed President Franklin Delano Roosevelt in the 1979 mini-series "Backstairs at the White House."  Among his many film roles, he appeared in Alfred Hitchcock's 1960 classic horror film, "Psycho," Sam Peckinpah's 1962 iconic western, "Ride the High Country," John Sturges's 1965 western spoof, "The Hallelujah Trail," and John Sayles' 1988 chronicles of baseball's 1919 World Series scandal, "Eight Men Out."  Anderson also co-starred with Chuck Connors in the 1962 film, "Geronimo."

Anderson made eleven guest appearances in all five seasons of THE RIFLEMAN, playing a different character in each episode.  He portrayed Owny in "The Retired Gun" (episode 17), Chet Packard in "Shivaree" (episode 19), Eli Flack in "The Hawk" (episode 29), Sully Hobbs in "The Patsy" (episode 41) , Cass Callicott in "Day of the Hunter" (episode 55), Jess in "Mail Order Groom" (episode 56), John Beaumont in "Shotgun Man" (episode 69), Hank Clay in "Face of Yesterday" (episode 95), Will Temple in "The Journey Back" (episode 115), John Gangling in "Incident At Line Shack Six" (episode 156), and Sam Gibbs in "Old Man Running" (episode 166).

Peter Whitney was an American television and film actor whose large frame and heavy-set, swarthy appearance brought him many roles playing villainous characters in his early career.  Later, as a character actor, he made frequent appearances in television series, particularly the western genre.  Among his film credits, he appeared in "In the Heat of the Night" (1967), "The Great Bank Robbery" (1969), and "The Ballad of Cable Hogue" (1970).  Whitney made nine appearances in THE RIFLEMAN, portraying Tracey Blanch in "Eddie's Daughter" (episode 46), John Jupiter in "Mail Order Groom" (episode 56), Andrew Bechtel in "Heller" (episode 62), Otto Drosheck in "Strange Town" (episode 81), Vince Fergus in "The Queue" (episode 110), John Holliver in "Long Gun from Tucson" (episode 121), Neb Jackman in 'Lou Mallory" (episode 145) and "Which Way Did They Go?" (episode 167), and Vantine in "Gun Shy" (episode 153).