King Mardan, also known as "The Holy One" is a giant fish met in Fish Monster Swamp,Rainbow Butterfly Woods. He can be caught with a Poison Apple and is responsible for the lost Firbits.

King Mardan appears to be a giant Purple fish with huge green eyes, long yellow eye lashes and a big grin. He also has a very flamboyant nature. This is much so that Monica even mistakes him for being a female.

He is voiced by Dee Bradley Baker.


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