Allston Wheatley makes his appearance in a scene where Beth is to be adopted when she was a teenager. He and his wife are the ones that adopted Beth. He doesn’t play many scenes in the TV series.
He is somebody who’s quite the lone type and is very severe when it comes to the image of his family.
He once orders his wife to go buy Beth some clothes because she wore the same ones every day. He’ll leave his wife and Beth soon enough in the series. His couple has suffered a great loss and didn’t manage to go through it.