Dr. John A. Zoidberg is a lobster-esque alien from planet Decapod 10 and the Planet Express physician. Zoidberg seems generally clueless about human anatomy and is kind of a homeless loser. We love him anyway.
Dr. Zoidberg is voiced by Billy West.
Fry: That's the saltiest thing I've ever tasted. And I once ate a big, heaping bowl of salt!
Bender: Oh, come on! That food was fine! The salt content was 10% less than a lethal dose!
Zoidberg: Uh oh. I shouldn't have had seconds.
Zoidberg: Now open your mouth and let's have a look at that brain. No, no, no, no, no, not that mouth!
Fry: I only have one.