Teresa Gallagher is an American-born British actress. Gallagher has also done various voice-over work for video games, commercials, radio plays, BBC radio dramas, and audiobooks such as several new Meg Cabot books and the 2007 audiobook adaptation of Charles Dickens's novel Bleak House which became The Times audio book of the year. A member of the BBC Radio Drama Company, she has read Radio 4's Book of the Week and Book at Bedtime.
The movie's plot that is set in the Blitz during World War II, a young Johnny meets Thomas, James, Percy, Emily, Squeak, and Puffing Billy alongside his father, who embark on a journey to stop the diesels' takeover.