Modesty Blaine is being played in this episode by actress Kathleen Crowley, where previously the part had been played by Mona Freeman.
Kathy Bennett sings Who's Gonna Walk Me Home Tonight?
The character of Wyatt Earp is seen in this episode, the only time he's see in the entire series though he is referred to on occasion.
Discontinuity: Although billed as Blackjack Hardy in the end credits, Frank DeKova's character is referred to as Blackjack Carney throughout the entire episode.
If some of the characters seem just a little familiar in this episode, go back and watch Bonanza.
Discontinuity: When Score mentions moving into the Commandant's quarters, Bassington refers to him as Major Score, as if he's been promoted, but in the very next line he calls him Captain Score again.
Discontinuity: Chad Everett is listed in the end credits of Part 1, but only appears in Part 2.
The names of the songs that Joan Marshall sings are Who's Gonna Walk Me Home Tonight? and I Wanna Man.
Bret Maverick is mentioned in the dialogue of this episode even though James Garner had already left the show.
Jack Kelly plays a dual role in this episode.
The Bella Union, where Bart goes to meet Clover McCoy, is the same club (or the same stock footage) which Bart and Walter Osborne wanted to purchase during Season Two's The Judas Mask.
During the course of this episode we hear that the year is 1876.
The song Dutchman's Gold which is heard sung in this episode, was written by Jerry Capehart, the writer who supplied this episode's story idea. Capehart also co-wrote Summertime Blues and C'mon Everybody with Eddie Cochran.
Roger Moore appears only briefly in the opening and closing scenes of this episode.
Roger Moore is seen only briefly at the end of the episode.
Flayger: I advanced you a hundred dollars to corpus delicti the Mavericks.
"Corpus delicti" is Latin for "body of the crime" used here to mean: "murder" the Mavericks.