Jimmy's worst enemies, the Yolkians from Jimmy Neutron: Boy Genius, come back and pretends to be nice, but Jimmy suspects something about the Yolkian's evil plan leading the town to turn against him and attend a Yolkian party.
Cast Appearances
Carolyn Lawrence
voices Cindy VortexCrystal Scales
voices Libby FallfaxFrank Welker
voices GoddardJeffrey Garcia
voices Sheen EstevezMark DeCarlo
voices Hugh NeutronRob Paulsen
voices Carl WheezerEpisode Discussion
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