In the end it is revealed as a big humorous twist as he is only in his neighbours bathroom as there is a whole in the wardrobe leading directly to it.

Teenager, a very miserable stereotypical boy who is up to nothing interesting, as would be showcased at the beginning of the movie in a comedic way. Shows the way a character like this would react in that situation.

The neighbour, only seen to be very disturbed and baffled by their own neighbours appearance in their home, would be a old man, reading the news paper as i think this would add to the already slap-stick humour the movie is driving towards.