And yet the posters also go after the little boy who plays Toby, deriding his accent as "American". Chris Severn may have been BORN in America, but his parents and older siblings were British Immigrants from South Africa. A baby learns speech and accents from what it hears at home, and being no more than six or seven at the time of filming, probably had a distinctive and REAL accent.
"I do hope he won't upset Henry.."

Try being an American and watching British, Irish and Australian actors who can't do an American accent resort to some sort of muddled "Southern" accent that makes them sound retarded.
But, somehow I get over it.

According to IMDB bio, Greer Garson was British.