The gorgeous Dianne Adler is a friend of Della who has quit her job when a man signed her to a modeling contract that Perry discovers allows the agent to take half of any money she comes into. When the agent is murdered she is charged.



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Episode cast overview, first billed only:
Lt. Tragg (credit only)
Dianne Adler
George Winlock
Montrose Foster
Paul Gilbert ...
Harrison Boring
Mrs. Winlock
Marvin Palmer (as Jonathan Lippe)
Plainclothesman (as Larry Blake)
Jack Pepper ...


Della Street is amazed at her new friend Dianne Adler's ability to eat enormous amounts of food and yet keep her slim figure. Dianne grew up near a relative of Della but she has had a rough childhood with a sick mother and dead father. Della becomes suspicious when she spots a couple of men following Dianne so she calls Perry and Paul. Dianne finally admits to Della that she has signed a contract with promoter Harrison Boring to be the exclusive model for a new clothing line. The only requirement is that she gain 12 pounds. Perry doesn't like the sound of the contract she's signed and confirms his suspicions when he visits Montrose Foster who finds missing heirs in return for a percentage. Paul Drake realizes that Dianne is being followed by another private detective named Dillard hired by Marvin Palmer, who lives with his mother Mrs. Winlock and her husband Mr. Winlock. After Boring is killed, Dianne is charged with murder and it becomes apparent that the Winlocks have a secret they ... Written by garykmcd

Plot Summary | Plot Synopsis


Crime | Drama | Mystery





Release Date:

17 December 1964 (USA)  »

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Aspect Ratio:

1.33 : 1
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User Reviews

Some Pointers
14 March 2012 | by (Buffalo, New York) – See all my reviews

The Case Of The Blonde Bonanza is memorable for having former Miss America Mary Ann Mobley as a guest star. Mobley is a friend of Della Street and Barbara Hale marvels at the way she seems to put away food without gaining weight. And men keep seeming to follow her, as if that wasn't to be expected from a Miss America.

There actually is one following her who is a rather seedy looking private detective played by Michael Constantine. His explanation that the whole thing is a bit of industrial spying in regard to the fashion industry is plausible enough and Mobley herself explains she's trying to gain weight so that she can model clothes for what Jane Russell used to call 'full figured gals'.

Of course Perry Mason suspects more and the story eventually involves a missing heiress racket and the death one of the racketeers gets Mobley arrested. But she has the best possible defense attorney.

Before Jessica Simpson, Mary Ann Mobley was giving a great performance as a dumb Dora blond. In fact Simpson might have seen this episode and gotten a few pointers.

10 of 11 people found this review helpful.  Was this review helpful to you?

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