Forces of Geek is reporting that Futurama voice actors John DiMaggio, Phil LaMarr, and Maurice LaMarche are claiming 20th Century Fox is trying to re-cast much of the vocal talent. The studio has even put out casting calls:
[ DR. JOHN ZOIDBERG (ZOIDBERG) ]Let's express some outrage. Who wants to burn down the police stable?
Dr. Zoidberg, a lobster-like alien, left his home planet of Decapod 10 to become a rich doctor but instead became the Planet Express staff doctor (doesnt pay so well). Zoidberg, who is usually shunned by the rest of the Planet Express crew, is always in search of his next meal. His skill as a surgeon, and basic knowledge of human anatomy, are often called into question. He secretly desires to become a stand-up comedian...SERIES REGULAR
(via AV Club, and Variety has confirmed the story.)