The second of two appearances by Jack Nicholson on The Andy Griffith Show (1960) before he became a superstar--the first appearance was as 'Mr. Garland' in Season 7, Episode 10, "Opie Finds a Baby."
Jack Nicholson would share a scene with Ron Howard's dad, Rance Howard, in the movie Chinatown (1974).
The plot of the episode in which Aunt Bee is the only juror out of the rest who believes Marvin is innocent was likely inspired by the film "12 Angry Men." The plot of that film centers on a juror (Henry Fonda) who is the only one that believes a teenager on trial for murder is innocent. This formula of "the lone holdout on a jury" would end up being recycled on numerous other television shows.
Television shows of this era often used the same extras and character actors repeatedly. The real store robber, played by Richard Chambers, also played one of Ma's boys in "A Visit to Barney Fife." Witness Charles Keyes, played by Jim Begg, was also the groom applying for a marriage license in "The County Clerk," the citizen calling for Sheriff Taylor during the filming of Sheriff Without a Gun in "The Taylors in Hollywood," and Opie's first customer in "Opie's Drugstore Job." The jury foreman (Tol Avery), and the juror sitting in the corner behind him, also played the two out of town tourists who turned Goober and Floyd's opinions back in Howard's favor in the episode "Howard the Comedian." Tol should also be very recognizable to The Andy Griffith Show fans as one of the actors to play Ben Weaver, of Weaver's Department Store.
The prosecutor tells Charles Keyes that he was about to ask him if, in his opinion, Marvin Jenkins was trying to avoid detection. The defense counsel would have objected immediately to this, indicating that witnesses are only supposed to testify as to what they saw or heard, not what they thought or suspected.