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

Leela: What's the mission?
Farnsworth: It's a delivery for the Democratic Order Of Planets.
Fry: DOOP? What's that?
Farnsworth: It's similar to the United Nations from your time, Fry.
Fry: Uh...
Hermes: Or like the Federation from your Star Trek programme.
Fry: Oh!

Leela: Bender, damage report.
Bender: The auxiliary power's out, and they spilled my cocktail.