Bruce Gordon made his third and final appearance on Perry Mason in this episode playing a shady nightclub owner with some secrets to hide regarding defendant Mary Ann Mobley. Gordon had previously appeared in TCO Paul Drake's Dilemma and TCOT Loquacious Liar. In both episodes he portrayed the murder victim so this is the only one in which he got to interact with show star Raymond Burr. Interestingly enough, Gordon made his film debut in 1949's Love Happy playing the brother of Raymond Burr. Love Happy is also famous for being the film debut of one Marilyn Monroe.
TCOT Blonde Bonanza is one of the final Mason episodes to be based on an Erle Stanley Gardner novel. As was the case with most episodes based on a Gardner novel, it happens to be one of the better ones despite what a previous "reviewer" might think. Normally brunette Mary Ann Mobley plays the blonde of the title and future All My Children and past Citizen Kane star Ruth Warrick puts in an appearance as the wife of Bruce Gordon's character.
Raymond Burr himself was critical of many of the scripts for Season Eight in which this show aired and threatened not to sign on for another season. I don't think TCOT Blonde Bonanza was one of the scripts he was critical about as this one stands as one of the best of the season.