Jonny Quest Wiki
Jonny Quest Wiki
This article is about the standard continuity character. For other incarnations, see Hadji (disambiguation).

Hadji is the adopted brother and sidekick of Jonny Quest.

Physical appearance

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He has limited supernatural abilities, allowing him to change probability of an outcome by using impossible methods for any regular person. Most commonly, he can levitate himself.


Early life

Hadji was an orphan on the streets of Calcutta, India.

Jonny Quest (1964 TV series)

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Jonny Quest (1986 TV series)

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Despite being a main character in the original series, Hadji is notably absent from a lot of the early related content for the series. He is not represented in the 1964 board game, he's not in the 1965 audio episode, and he's not in either the Jonny Quest Annuals released in 1965 and 1966. Of the three Jonny Quest storybooks released in the early seventies, Hadji is absent in two of them, and in the third storybook he's notably included in far fewer images than the other main characters.


Jonny Quest (Comico)

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The Real Adventures of Jonny Quest

As a teen.

Main article: Hadji Singh

Hadji is named Hadji Singh in The Real Adventures of Jonny Quest. In season one, his adopted status is downplayed and he is described as Dr. Quest's assistant, but in season two, it's again clear that he's Dr. Quest's adopted son. Hadji's mystical powers are also much more subtle.

Tom and Jerry: Spy Quest

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Years later it is revealed that Jonny and Hadji get married and run the town's bowling alley. (It is assumed in this universe they are not adoptive brothers.)[1]

Voice actors