I found it interesting that when a lot of people wrote obits about Buddy Ebsen recently, they talked about the infamous incident with the aluminum makeup, but nobody mentioned a) He was actually originally cast as the Scarecrow, but Jack Haley convinced him to trade (as the actor who'd done the part of the Scarecrow in the 1902 stage musical was something of a hero to Haley). b) Because of the late recasting, if you listen VERY closely to the soundtrack, when the threesome and foursome sing "Off to See the Wizard" it's Ebsen's voice, not Haley's!