Michael Brandon (born Michael Fieldman; April 20, 1945) is an American actor, who has starred in many films and television roles. He is best known for his roles as Elliot Salad in the 2011 TV series, Episodes, Senator Brandit in the 2011 Marvel film, Captain America: The First Avenger, and as Diesel, Mr. Bubbles and the US Narrator on the long-running children's television series, Thomas & Friends, up until the sixteenth season. Starting with the seventeenth season, Mark Moraghan became the new narrator, Diesel would be voiced by Martin Sherman starting with King of the Railway until the eighteenth season, and starting with Bubbling Boilers, Keith Wickham voices Mr. Bubbles.