In 1997, two years after the end of the series, Andy Griffith reprised the role of Matlock on a two part episode of Diagnosis Murder (1993). This would mark his final appearance in the role, and the only time the Matlock character was seen on CBS. In the episode, it is explained that Dr. Mark Sloan (Dick Van Dyke) advised Ben in 1969 to invest his life savings, five thousand dollars, in the 8-track tape industry. When Ben lost all of his money, he began buying cheap suits off the rack, and eating hot dogs, because they were all he could afford. By the time he had money again, it was a habit.
Clarence Gilyard, Jr. appeared in almost every episode of the NBC edition of the show, after he joined the cast, before production moved to North Carolina for the series seventh year. He was about to co-star in Walker, Texas Ranger (1993), which made Gilyard's scheduling more difficult.
Clarence Gilyard, Jr. and Daniel Roebuck were series regulars together for all of season seven, and a few episodes of season eight (when Gilyard left), but due to one or both not making an appearance in a given episode, they were only in two together.
His fee is one hundred thousand dollars, but told a client once, that a pro bono case once in a while, is good for the soul. He also told the relative of a client, who noted how expensive he was, that when he wins, he's usually considered a bargain.
Clarence Gilyard, Jr. and Daniel Roebuck, who played Matlock's private investigators, also appeared in movies featuring Paul Gleason as an officer of the L.A.P.D. Gilyard appeared in Die Hard (1988), and Roebuck appeared in Money Talks (1997).
At the end of every case, the person who was on the stand being question by Matlock was the actual killer, and Matlock had exposed him, despite making clear that his one goal was to prove reasonable doubt in the case of his client's guilt or to prove his client's innocence.
In one of Linda Purl's absences, in an episode, Kari Lizer's character had yearned to replace Ben's daughter, Charlene; after moving to Philadelphia; when Andy Griffith's character was opposed to this; hence, Nancy Stafford replaced Purl.
Matlock was like a surrogate father to Michelle and Conrad, as does Andy Griffith to Nancy Stafford and Clarence Gilyard Jr., in real-life. In separate interviews, Stafford said in an interview, Griffith helped her career boost, whilst Gilyard said in an interview that when he was auditioning for Conrad; he'd forget the script and be Opie for a day.