The gang investigate the disapperance of the Black Pearl of Tonga Lei. The prime suspect is Morgan the Magician's former teacher, the Ghost of the Great Haldayne.

Don Messick
Scooby-Doo (voice)

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Lennie Weinrib
Scrappy-Doo (voice)

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Casey Kasem
Shaggy Rogers (voice)

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Frank Welker
Fred Jones (voice)

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Heather North
Daphne Blake (voice)

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Guest stars