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E*I*E*I*O is the second half of the twelfth episode of The New Scooby-Doo Mysteries; it aired alongside A Scarey Duel With a Cartoon Ghoul.

Premise

The kids head over to the Experimental Institute for Evolutionary Improvement of Organisms, also know as E.I.E.I.O., to help old Mr. MacDonald, the director, discover who is creating monsters with the secret formula that he developed to create large amounts of food.

Synopsis

Insert details here.

Cast and characters

Actor Character
Don Messick Scooby-Doo
Scrappy-Doo
Casey Kasem Shaggy Rogers
Heather North Daphne Blake
Actor Old MacDonald
Actor Mr. Memory
Actor Eunice
Actor Parker
Actor Monster Mouse
Non-speaking roles
Cow

Villains

  • Monster Mouse (redeemed)

Suspects

Suspect Motive/reason
Mr. Memory
Eunice
Parker
The voice commanding the monster mouse could have come from either one of them.

Culprits

Culprit Motive/reason
Parker (commanding a real genetically-engineered giant mouse, disguised as Old MacDonald). To take over the farm and make millions with Old McDonald's formulas.

Locations

Notes/trivia

  • TBA

Animation mistakes and/or technical glitches

  • None known.

Inconsistencies/continuity errors and/or goofs/oddities

  • None known.

In other languages

Language Name Meaning
Greek Το Ινστιτούτο The Institute

Home media

  • TBA

Quotes

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