In the Railway Series, various other buses have appeared in multiple colours such as green and blue. In Henry the Green Engine, a blue double-decker bus with a sign advertising the book Troublesome Engines can be seen in the background. In the magazines, a green bus resembling a faceless Bertie, used for hospital services, appears in the story Important Passengers. In the annual story, Bertie the Snow Bus a faceless blue bus resembling Algy appears with the headcode "401".