The science fiction of Mark Clifton

Clifton Duncan Davis (born October 4, 1945) is an American actor, singer, songwriter, minister, and author. Davis wrote The Jackson 5's No. 2 hit "Never Can Say Goodbye" in 1971. He has numerous Broadway credits, including Hello, Dolly! (opposite Pearl Bailey); Aladdin; Wicked; and his Tony Award–nominated turn in Two Gentlemen of Verona, among others.