Dawson is a red tank engine. His quadruplets are Dailey, Damian, and David.
Dawson is a control-freak, and is not quite satisfied with his role as the "second quadruplet." He tends to get uptight when he feels others around him are not acting like they should.
Dawson (like his siblings) does not have a real-life basis. He was designed by the Fat Controller.
Dawson is painted bright red with gold lining and wheel spokes.