Royal bus driver

The Royal Bus Driver is a giant Lakitu with remarkably large spectacles and a green cap fairly similar to Luigi's that drives a cloud-like bus with shells for wheels. He resides in or near Nimbus Land. The bus, as well as its driver are under the control of King Nimbus, who instructs the Royal Bus Driver to drive Mario to Bowser's Keep. He has not been seen in any games since Super Mario RPG, so very little is known about him.