Laurence Haddon is a prolific American TV actor with more than 110 screen credits to his name. Haddon began his television career during the early 1960s, notably appearing on the shows "Dr. Kildare" and "Dennis the Menace" in recurring roles. Often featured in one-off spots, Haddon turned up on episodes of "The Donna Reed Show", "I Spy", "My Three Sons", and "The Flying Nun", among other programs. In the 1970s, his string of guest appearances continued, with bit parts on "The Partridge Family", "Sanford and Son", "Kojak", and "The Rockford Files". Haddon worked most extensively on the comedy/drama series "Lou Grant", appearing in various roles over the course of a few seasons, and the prime-time 1980s soap opera "Dallas", where he played the semi-regular part of Franklin Horner for more than six years. Appearing in a few productions ("Matlock", "Columbo", "Designing Women") during the following decade, Haddon went into retirement in the late '90s.