Yes.You will have to buy an electrical outlet converter, because their electrical outlets are different from ours.
You can use the actual Wii in the US, but you can't use any games that are bought in the US with it, as it is classed as a different "region."
You can use it. Sure. But you'll have to buy all your games in the US.
check out this site second post says its NTSC http://wheretobuyawii.tumblr.com/
The short answer is no. The UK uses different AC voltage and plugs from the US, and also a different television system (PAL) from the US (NTSC). These are not compatible. (Television programs traded...