George MacKay (Johnny Maxwell) later starred in another time travel miniseries: 11.22.63 (2016), based on the 2011 novel of the same name by Stephen King.
Matthew Beard, who portrays Young Tom Maxwell also portrayed the main character Tom in 'An Angel for May (2002)', a movie very similar to this one. Tom was a modern boy who found himself going back in time to England during World War II.