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John Derevlany, Jim Lewis and Kirk Thatcher.
John Derevlany was a writer for The Jim Henson Company during the 1990s, during which time he wrote a feature film script, Muppet Time Travel, which was never produced.
He also created, executive produced and sometimes directed and/or wrote thirty episodes of Animal Jam, and worked on a concept for Uncle Deadly's House of Badness.