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.

Dr. Zoidberg Quotes

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.
Zoidberg: Really?

Fry: Uh, is there a human doctor around?
Zoidberg: Young lady, I'm an expert on humans.

Futurama Quotes

Farnsworth: (on the phone) Oh, how awful. Did he at least die painlessly? To shreds, you say. Well, how is his wife holding up? To shreds, you say. Very well then. (hangs up) Sad, sad, terrible, gruesome news about my colleague, Dr. Mobutu.
Leela: Was his apartment rent-controlled?

Fry: Professor, my Fry-fro's all frizzy.
Farnsworth: Okay?
Fry: That's all. Oh, also, I'm covered in severe burns.
Farnsworth: So, what of it?
Fry: Well...why is...those things?
Farnsworth: You mean you don't remember?
Fry: Nope, nothing. It's like when I passed out in college except nobody drew magic marker penises on my forehead