Answer:

val

Answer	Crossword Clue
VAL	Harper, to friends
VAL	Kilmer of "The Island of Dr. Moreau"
VAL	Kilmer of "Willow"

VAL	Actor Kilmer
VAL	Harper or Bertinelli, for short
VAL	Mr. Kilmer
VAL	He was Jim in "The Doors"
VAL	First name of a former Batman
VAL	Batman not named Adam, Michael, George, Christian, or Ben
VAL	Kilmer of films
VAL	Kilmer of "Pollock"

VAL	Hollywood's Kilmer
VAL	Kilmer of film
VAL	Kilmer of "Batman Forever"
VAL	Jim's portrayer in "The Doors"
VAL	Michael's successor as Batman
VAL	...-d'Or, Quebec
VAL	Sweetheart: Abbr.
VAL	Batman after Michael

VAL	Kilmer of "The Saint"
VAL	Batman portrayer Kilmer
VAL	Kilmer of "Tombstone"
VAL	Batman before George
VAL	Kilmer of "Top Gun"
VAL	Feb. sentiment
VAL	Kilmer of "Heat"
VAL	Kilmer of "The Doors"

VAL	"Top Secret!" actor Kilmer
VAL	Jim Morrison portrayer Kilmer
VAL	Kilmer of "At First Sight"
VAL	"Batman Forever" actor Kilmer
VAL	Kilmer on film
VAL	Batman between Michael and George
VAL	Kilmer who played Batman
VAL	Kilmer of "Wonderland"

VAL	Wayne portrayer Kilmer
VAL	Batman player Kilmer
VAL	Kilmer of "Real Genius"
VAL	Batman player before George
VAL	Michael's successor in the Batman films