Carl H. Greenblatt is a writer. He worked on the series' The Grim Adventures of Billy & Mandy in which he voiced Fred Fredburger and created the cartoon show, Chowder. Chowder ended in 2010 because C.H. Greenblatt was running out of ideas, Cartoon Network was introducing Adventure Time and Regular Show to the network. and Nicky Jones (the voice of Chowder) was getting older and is losing his Chowder voice, so instead of cancelling the show, he decided to end the show with a half-hour finale.

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