At least in Daggerfall one spoke to the player. But in the Hircine quest, a werewolf tries to convince you not to kil him.

The talk demoniacally and are monstrous looking! They look like this And are black as midnight
http://www.gameinformer.com/cfs-filesystemfile.ashx/__key/CommunityServer-Components-ImageFileViewer/CommunityServer-Components-UserFiles-00-00-58-00-92-Attached+Files/1300.S35Hu.jpg_2D00_610x0.jpg
and THERE At least 1.5 bigger

That's a werewolf from Chronicles of Narnia.

They are bigger though. Believe it or not, I saw the werewolf's facial features and body and it looks like this:
http://www.dreadcentral.com/img/news/aug08/underworld.jpg

Looks like Bethesda added a mixture of Underworld werewolves with Bloodmoon werewolves.

Okay, that kind of calms me down a bit. Still, I'm a little disappointed, I was hoping the werewolves would be mindless beasts in wolf form. It would make it more curse-like. Regular humans at day, who have to live with the knowledge that they do horrible things to other beings at night and cannot control it. Would make them kind of tragic characters you can sympathize with, if you know what I mean. It would also make sense for them wishing to find a cure. Right now it seems that being a werewolf has no drawbacks at all. You can fit in everywhere, and can kick anyone's ass when you wish.

An unrelated question: Can you infect others as well?

Yeah. But the quest may have a reason that the werewolf speaks. Hircine cursed him to be in his wolf form forever or something because he was in love with a civilized life. I still think werewolves are bestial without no sense of humanity left. But I agree, in ast Elder Scrolls werewolves were much like our ancient folklore.

the "other" werewolf we've seen also spoke during werewolf form, seemed in complete control of his actions.

the drawback of the curse and the reason for seeking a cure, at least for the nords, is probably of them being unable to reach their version of valhalla.

True. They believe Shor might not welcome an animal to Sovengarde and most Lycanthropes who die in Nirn to go Hircine's realm, the Hunting Grounds, for all eternity to hunt in bliss. So I guess the cure means a manner of choosing where you want to spend eternity. Some prefer Hircine's realm, but nords like the idea of drinking and singing in Sovengarde.

So can we toggle becoming a werewolf?

So does any 1 have confirmation on wether it's forced third person as werewolf or we still have access to first. I been hearing to much of both and I'm not sure which is true. Pm if necessary

I agree.....a true predator wants to kill his prey with the least amount of risk to himself......If you're up against seven npcs.....lure them away...... separate them...and kill them one by one.....divide and conquer

I'm fairly certain it's forced 3rd person, like 99% sure...

Then that is essentially another downside to counter the positive of being a werewolf.