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Twenty Thousand Screams Under the Sea is the ninth episode of the original half-hour, Scooby-Doo and Scrappy-Doo.


The gang is in Acapulco to watch the cliff diving show. However, they encounter the Sea Beast of the Aztecs which scares the divers off and haunts a bay.


Insert details here.


Main characters:

Supporting characters:


Other other characters:

  • Cliff diving judge (only appearance)
  • Cliff diving contestants (only appearance)(no lines)
  • Harbour patrol officers (only appearance)(miscellaneous speaking)




  • Miguel Valdez's boat
  • Speedboats
  • Sunken ship


Suspect Motive/reason
Señor Gonzales He wanted the gang out of his shop after they read in his customers book.


Culprit Motive/reason
Tiger Morris as the Sea Beast of the Aztecs To find treasure.


Don Messick Scooby-Doo
Lennie Weinrib Scrappy-Doo
Casey Kasem Shaggy Rogers
Cliff diving judge
Frank Welker Fred Jones
Señor Gonzales
Heather North Kenney Daphne Blake
Pat Stevens Velma Dinkley
John Stephenson Miguel Valdez
Pat Fraley Tiger Morris
Sea Beast of the Aztecs
Harbour patrol officer


  • Daphne, Fred and Velma scuba dive in this episode. Their scuba diver outfits are similar to the ones they wore in the Scooby-Doo, Where Are You! episode A Clue for Scooby Doo.
  • Swimwear consists of blue trunks for Fred, a green bandeau bikini for Daphne, and an orange one-piece bathing suit for Velma.


Cultural references

  • The title of the episode is a reference to the 1870 novel Twenty Thousand Leagues Under the Sea, by Jules Verne.

Animation mistakes and/or technical glitches

  • None known.

Inconsistencies/continuity errors and/or goofs/oddities

  • Velma calls a hang glider, a kite.

In other languages

Language Name Meaning
Greek Είκοσι Χιλιάδες Κραυγές Κάτω από τη Θάλασσα Twenty Thousand Screams Under the Sea

Home media


Tiger Morris: And I would've been rich today if it hadn't been for you!

External links

  • TBA

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The Hairy Scare of the Devil Bear Scooby-Doo and Scrappy-Doo (first series)
List of episodes
I Left My Neck in San Francisco