Born in Philadelphia, PA; educated at the Pennsylvania State University (art) and NYU. Blond, boyish lead of the 1970s who made an auspicious debut in Frank Perry's sensitive teen film, LAST SUMMER (1969), opposite Richard Thomas and Barbara Hershey. Davison has since accepted challenging and controversial roles, such as the child-molesting title character of Robert M. Young's prison drama SHORT EYES (1977) and a man who cares for his AIDS-victim lover in LONGTIME COMPANION (1990); the latter performance earned him a best supporting actor award from the New York Film Critics Circle. Davison continued to appear on stage (Streamers, The Normal Heart). Other notable credits include THE STRAWBERRY STATEMENT (1970), WILLARD and BEEN DOWN SO LONG IT LOOKS LIKE UP TO ME (both 1971), ULZANA'S RAID (1972), MAME (1974), MOTHER, JUGS & SPEED (1976), "The Lathe of Heaven" (1980, TV), CRIMES OF PASSION (1984), SPIES LIKE US (1985), SHORT CUTS and SIX DEGREES OF SEPARATION (both 1993), THE BABY-SITTERS CLUB (1995), THE CRUCIBLE (1996), APT PUPIL (1998), AT FIRST SIGHT (1999), X-MEN (2000), SHY GUY (2001), DAHMER (2002), X-MEN 2, RULES OF THE GAME and THE RUNAWAY JURY (all 2003), ON THE COUCH (2004), HATE CRIME, CONFESSION, GOING SHOPPING and TOUCHED (all 2005), SPECIAL OPS: DELTA FORCE and THE DEAD GIRL (both 2006), BREACH (2007), and CAMP HOPE, LA LINEA and THE REAL CATCH (all scheduled for 2008). Davison has appared in numerous made-for-TV movies, series and mini-series, most recently as Doug Hellman in "Close to Home" (2005-07).  Nominated for Best Performance by an Actor in a Supporting Role 1990: LONGTIME COMPANION 1 nomination