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A. Fong
Zen Tuo was apparently a Chinese spirit who was similar to Ivan the Terrible. He killed two messengers. He died later. They all rose from the dead and searched for a Chinese mask to cover Zen Tuo's hideous face. He turned out to be A. Fong, a story teller who had hired henchmen.
Physical appearance
Scooby-Doo, Where Are You!
A. Fong dressed up as Zen Tuo to scare away people that were curious about the haunted Buddhist temple.
Appearances
Other versions
Scooby-Doo Unmasked
Zen Tuo was the main villain of the first world, "Shuttery Showdown in Chinatown." He controlled a huge dragon, which was the first boss, and was defeated by Scooby by using the Kung-Fu megastrike. After the dragon was defeated, it malfunctioned and crashed into Zen Tuo. He was unmasked as Maggie Xi, a citizen of Chinatown. However, she was then revealed to be mubber, not real. The gang then found a small radio transmitter and heard a man's voice that said, "You can't catch what you can't hold!" This lead them to the next mystery at the next world, "Rock and Roller Coaster Terror."
Scooby-Doo 2: Monsters Unleashed
The Zen Tuo costume has a cameo as one of the costumes seen in the Coolsonian Criminology Museum. He is seen in the actual film in the middle corner of the screen as Patrick and Velma talk and meet each other for the first time.