Hubert was the one who said he sounded a little like Brain this season, though I haven't heard anyone say he sounds like George.
I agree his voice and inflections do make him sounds a little like Brain, not so sure about George.
It must not have been on this forum...somewhere else, I think.
And the similarities to George...they're there if you listen really closely and compare Arthur's S16 voice to George's voice from the
older seasons. But now that I think of it, he does sound more like Brain, especially when Brain's voice was sort of like his voice in "
Water and the Brain" (Brain's had a lot of voice actors, so I sort of just know his various voices by how they sound in my head).