Turanga Leela is the most competent of the Planet Express crew, as the ship's one-eyed captain.  Leela thinks she's an alien from another planet, but eventually learns she's just a mutant from the sewers.

Leela is voiced by Katey Segel.

Leela 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?

Leela: Popplers are intelligent. This one called me mama.
Zoidberg: Congratulations. I assume Amy is the father.

Futurama Quotes

I hate these filthy Neutrals, Kif. With enemies you know where they stand but with Neutrals, who knows? It sickens me.

Zapp

Bender: Who wants dolphin?
Leela: Dolphin? But dolphins are intelligent.
Bender: Not this one. He blew all his money on instant lottery tickets.
Fry: OK.
Leela: Oh, OK.
Amy: That's different.
Farnsworth: Good, good.
Leela: Pass the blowhole.
Amy: Can I have a fluke?
Hermes: Hey, quit hogging the bottle-nose.
Farnsworth: Toss me the speech centre of the brain!