Elton John as Harold?
In interviews throughout his career, Elton John has said he auditioned for (and was offered) the part of Harold back in 1970. He says he turned it down because at that point his music career was finally starting to take off. (He'd just released the album which contained 'Your Song', 'Border Song' & 'Take Me to the Pilot'.)
Elton's always been prone to exaggeration - so not sure if that "offered the part' portion is true. But - if it's true and he had taken the part - imagine how differently things could've turned out.