Arthur is a human man who comes to a hotel were he meets Miss Pym. He owns a budgerigar named Gwendelin. He has romantic-feelings with Miss Pym.


Not much of him is known, except he does have a liking to budgerigars like Pym, which could be one of the reasons they fell in love, though whether or not he also loathes koalas like Pym is a mystery since he never stated it at all.