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The Secret of Shark Island


Sonny & Cher title card

The New Scooby-Doo Movies
Episode # 108
US Air date October 28, 1972 (CBS)
Directed by William Hanna
Joseph Barbera
Previous episode

Sandy Duncan's Jekyll and Hyde

Next episode

The Spooky Fog of Juneberry

The Secret of Shark Island is the eighth episode of the first season of The New Scooby-Doo Movies.


Taking a honeymoon, Sonny and Cher meet up with the gang at a run down beach resort that is not what they expected. Along with bad accommodations, there is a giant monster shark that is running around.


Insert details here.


Main characters:

Supporting characters:


Other characters:

  • Vultures (single appearance)(no lines)



  • TBA



Suspect Motive/reason
Matilda Suspicious manner.


Culprit Motive/reason
Milo Meekly
Sea scavengers as the shark men
To steal gold treasure.


Don Messick Scooby-Doo
Matt Hildago
Casey Kasem Shaggy Rogers
Frank Welker Fred Jones
Heather North Daphne Blake
Nicole Jaffe Velma Dinkley
Sonny Bono Himself
Cher Herself
John Stephenson Milo Meekly

Full creditsEdit

The following credits are how they are seen on-screen (or as close as possible).


  • Sonny and Cher ended their marriage in 1975. Sonny passed away on January 5, 1998 in a skiing accident.
  • Pescado diabolico means "diabolical fish" in Spanish.

Cultural referencesEdit

  • The "Avon lady" referenced by Cher is a door-to-door sales person that sells Avon personal care products.
  • The "Jolly Green Giant" (well giantess) referenced by Sonny is the mascot of a frozen and canned vegetable brand owned by General Mills. The mascot made its first television appearance in 1958.
  • Sonny & Cher also refer to Barbra Streisand while in bed, who was a famous musician and actress at the time.

Animation mistakes and/or technical glitchesEdit

  • On the brochure, the Hideaway Hotel is misspelt "Hideway Hotel".
  • When coming back up for air, Fred says he couldn't hold his breath any longer and Velma agrees, but it comes from Daphne's mouth.
  • A few seconds before Mr. Meekly says to Sonny and Cher, "Want all of your children in the same room", the bell on his desk disappears.

Inconsistencies/continuity errors and/or goofs/odditiesEdit

  • None known.

Home mediaEdit


Previous episode: Series: Next episode:
Sandy Duncan's Jekyll and Hyde The New Scooby-Doo Movies
Season 1
The Spooky Fog of Juneberry