Idris
The name of a city in the Mortal Instruments series by Cassandra Clare
Amalthea
the name the unicorn uses while in her human form in Peter S. Beagle's "The Last Unicorn"
Rune
character in Jeffery Deaver novel "Manhattan is My Beat"
Rhaegar Targaryen from A Song of Ice and Fire by George R.R. Martin
Heathcliff "Cliff" Huxtable
main character on The Cosby Show
Clifford C. "Cliff" Clavin
Jr., character on TV's "Cheers"
Cliff Clewless
character from the comic strip Brewster Rockit: Space Guy!.
Cliff Bradshaw
character in the musical Cabaret
Cliff Barnes
character on TV's "Dallas"
Cliff Booth
character in Quentin Tarantino's "Once Upon a Time in Hollywood"