As you can see, Rupert Grint went full-out in disguise wearing (what he believes was) Gary Oldman’s old wig when he played ...

But one actor in particular has fans losing it on the internet after they finally put their fingers on where they knew him ...

A behind-the-scenes video revealed the time when Rupert Grint even fooled Daniel Radcliffe while dressed as a Death Eater on set. I’ve got to say, watching it is totally priceless! If you recall ...