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The Yolkians have come to earth, but this time they seek out only peace and brotherhood with the people of Retroville. While Jimmy Neutron suspects the worst, everyone in town is ready to forgive and forget. This special serves as a direct sequel to the Jimmy Neutron movie.
as James Isaac 'Jimmy' Neutron / Nissa (voice)
as Judy Neutron / Vox (voice)
as Hugh Neutron / Yokian Waiter (voice)
as Carl Wheezer / Principal Willoughby / Butch / Yokian (voice)
as Sheen Estevez (voice)
as Cindy Vortex (voice)
as Libby Fallfax (voice)
as Miss Fowl (voice)
as Nick Dean / Woman #1 (voice)
as Sam / Benny / Man #1 (voice)
as King Goobot / Yokian / Man #2 / Alarm (voice)
as Ooblar / Yokian Waiter (voice)
as Goddard / Poultra (voice)