Zero have only 4 fingers

[db]

Maybe he's an alien or he just played to much Assassins Creed heh P:
cough nine toes cough

[CamelJokey]

He's Homer Simpson.

[♥ Bean ♥]

well, he actually has THREE fingers....and a thumb :P

[NemoTheEight]

Yes he is. He is too slim for human too. His race is unknown. His gender is unconfirmed too.

Originally posted by Homeless Heavy:

well, he actually has THREE fingers....and a thumb :P

Thumb is finger.

[InfinitySail]

hi

[Curmudgeon of Torchwood]

Have you ever collected the ECHOs in Sawtooth Cauldron?

Handsome Jack: So what's this Zero guy doing on Pandora in the first place?

Angel: I dunno.

Handsome Jack: Angel, you've got a brain the size of a planet. Don't give me 'I dunno.'

Angel: From what footage we have of him, I can't even tell if Zero's human or not.

Handsome Jack: W-w-what do you mean, not human? Is he a robot? An alien? What?

Angel: I dunno.

(as heard in recording 2)

[Brovah]

He's obviously an undercover Eridian getting in good with the vault hunters so that he can take the weapons and other items they give him to destroy all human life on pandora for killing his species.

[Sonadre]

He's a robot, there is a head skin that is broken so you see inside his head and yeah

[Curmudgeon of Torchwood]

Originally posted by Sonadre:

He's a robot, there is a head skin that is broken so you see inside his head and yeah

What's the name of the skin???

EDIT: I found something at the borderlands wiki:

In Mad Moxxi and the Wedding Day Massacre the reward head for Zer0 shows a robotic eye in his shattered helmet. A promotional description stated "it should be said that his new head is named 'N0t C4n0n' for a reason," keeping Zer0's true race a mystery.

'nough said?

[Crabapentin]

Originally posted by Sonadre:

He's a robot, there is a head skin that is broken so you see inside his head and yeah

Even the NAME is "Not Can0n" xD

[FreFlo [TTV]]

Randy's only clue-> Zero does not breathe

[ShinkuTear]

Originally posted by TN_Bandit:

Randy's only clue-> Zero does not breathe

Source? That I know of, the only out-of-game mention is that they refer to Zero as an It instead of He/Him or She/Her sort of stuff... but even then, I see that as keeping it unknown on what Zero is.

[GooglyMoogly!]

Has

[FreFlo [TTV]]

"Ah, a second wind---metaphorically speaking of course---breath is overrated"