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Gender Male
Hair color Brown
Eye color Black
Occupation Student; activist; musician
Affiliation Fellow protestors (Fish Freaks)
First appearance SDMI: The Shrieking Madness
Voice actor Carlos Alazraqui
"Yes! You must be willing to kill the environment to save it!"
- Ernesto, The Siren's Song

Ernesto was the leader of a group of protesters at Darrow University, and was an acquaintance of fellow 'comrade', Daphne Blake.

Physical appearance

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Scooby-Doo! Mystery Incorporated

Season one

Daphne met him while he was protesting at the Blake Family Center for Self-Named Buildings.

Ernesto unmasked
Ernesto unmasked
ShrooboidBratAdded by ShrooboidBrat

When there was an opportunity to get oil money to fund his protests, he became the leader of the Fish Freaks, who were responsible for several kidnappings.



"You have no idea how expensive it is to be a grass-roots activist!"
The Siren's Song '


  • He seems to be based on Ernesto "Che" Guevara, a Argentine Marxist revolutionary, physician, author, intellectual, guerrilla leader, diplomat military theorist, who was a major figure of the Cuban Revolution; even sharing the same first name.
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