Dr. Jonathan Jacobo
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| Movies/Shows | Scooby-Doo 2: Monsters Unleashed |
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| ID | 4051971 |
About Dr. Jonathan Jacobo
Dr. Jonathan Jacobo, otherwise known as Heather Jasper Howe or The Evil Masked Figure, is the main antagonist of the 2004 film Scooby-Doo 2: Monsters Unleashed. He is a mad scientist who wants revenge on the Mystery Incorporated for capturing and imprisoning him in the past.
Dr. Jonathan Jacobo Photos
