Ambrose Silk
in Evelyn Waugh's Put Out More Flags (1942; "portrait of the homosexual eccentric and writer, Brian Howard")
Ambrose "Jackass" Jakis
character in "The Kingkiller Chronicles" by Patrick Rothfuss
Ambrose Spike
a hedgehog in the book "Redwall," by Brian Jacques
Ambrose Chappell/Ambrose Chapel
a person and a place in Alfred Hitchcock's The Man Who Knew Too Much
Ambrose
character on American Horror Story: My Roanoke nightimare
Ambrose Spellman
character from The Chilling Adventures of Sabrina
Lord Ambrose D'Arcy
character in the 1962 film The Phantom of the Opera
Ambrose
a squirrel in the book "Fleabee's Fortune" by Robin Jarvis
Ambrosius Aurelianus
legendary king of Britain
Ambrosius Flume
minor Harry Potter character, the owner of Honeydukes
Ambrosius
the canine steed of Sir Didymus in Jim Henson's "Labyrinth"
Captain America
a Marvel superhero portrayed by Chris Evans
Emrys
Welsh version of Roman name Ambrosius, as in Emrys Wledig (Ambrosius Aurelianus), Romano,British warlord; later the uncle of King Arthur; or Myrddin Emrys (Ambrosius Merlin)
Emrys Killebrew
character in Marvel's Deadpool comics
Emrys
a character from Sarah J. Maas's Throne of Glass series