A Good Medium is Rare

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A Good Medium is Rare
Good medium
The New Scooby-Doo Movies
Air date October 14, 1972
Directed by William Hanna
Joseph Barbera
Previous episode

Guess Who's Knott Coming to Dinner

Next episode

Sandy Duncan's Jekyll and Hyde

A Good Medium is Rare is the sixth episode of the first season of The New Scooby-Doo Movies.


When the kids return a lost dog to her owner Phyllis Diller, they learn that someone is trying to trick her out of her jewels. Does it have something to do with Madame Zokar and the Magic Mansion?


Insert details here.

Guest stars

Cast and characters

Actor Character
Don Messick Scooby-Doo
Bridge operator
Casey Kasem Shaggy Rogers
Frank Welker Fred Jones
Heather North Daphne Blake
Nicole Jaffe Velma Dinkley
Phyllis Diller Herself
John Stephenson The Great Mysto
Joan Gerber Madame Zokar
Actor Magic Mansion Phantoms
Actor Phyllis Diller's neighbor
Actor Police officer
Non-speaking roles
Phyllis Diller's poodle



Suspect Motive/reason
Lucas Strange manner. Took an interest on Phyllis Diller's jewels.
The Great Mysto Acted suspiciously. Also took an interest on Phyllis Diller's jewels.
Alberto Suspicous manner. Also took an interest on Phyllis Diller's jewels.
Madame Zokar Supposedly called out the spirit of Phyllis Diller's first husband which revealed the location of her jewels.


Culprit Motive/reason
Alberto and his accomplice as the Magic Mansion Phantoms To steal Phyllis Diller's jewels.



  • Phyllis Diller was actually married two times to Sherwood Diller (m. 1939-1965), and Warde Donovan (m. 1965-1975). She was married to her second husband when she appeared in this episode.
  • Phyllis Diller passed away on August 20, 2012 making her one of ten guest stars who is no longer living (as of 2014).

Animation mistakes and/or technical glitches

  • None known.

Inconsistencies/continuity errors and/or goofs/oddities

  • It was never revealed who the Gargoyle was.

Home media

  • Due to most likely expensive royalties owed to Phyllis Diller (her estate as of 2012) in lending her likeness and voice to a fictionalised version of herself, Warner Home Video are unable to release this episode onto DVD.


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Guess Who's Knott Coming to Dinner {{{series}}} Sandy Duncan's Jekyll and Hyde

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