Darragh
a character in the book "The Child of the Prophecy" by Juliet Marillier
Duncan
character in Shakespeare's Macbeth
Duncan
narrow gauge tank engine on animated series Thomas & Friends
Duncan Douglass
character on animated series Freakazoid
Duncan
Idaho, character in the Dune series by Frank Herbert
Duncan MacLeod
immortal hero in Highlander: The Series
Ciaran McCarthy
character on British soap "Coronation Street"