Born in The Bronx, NY; educated at Fordham University. Former divinity student who worked his way up the ranks of CBS and established himself in the 1950s as a leading TV director, noted for his deft handling of actors and leisurely, unobtrusive style. Mulligan made his feature debut with FEAR STRIKES OUT (1957), an absorbing account of the personal problems which led baseball star Jim Piersall (Anthony Perkins) to a nervous breakdown. He again collaborated with FEAR producer Alan Pakula on several fine films of the 1960s, notably TO KILL A MOCKINGBIRD (1962), for which Gregory Peck earned a best actor Oscar®, LOVE WITH THE PROPER STRANGER (1963) and UP THE DOWN STAIRCASE (1967). Other notable directing credits include THE GREAT IMPOSTOR (1960), BABY THE RAIN MUST FALL and INSIDE DAISY CLOVER (both 1965), SUMMER OF '42 (1971, in which he also performed the voice of the Narrator), THE OTHER (1972, also producer), SAME TIME, NEXT YEAR and BLOODBROTHERS (both 1978), and THE MAN IN THE MOON (1991), his last film before retiring from the business. His brother was actor Richard Mulligan (1932 - 2000).  Nominated for Directing 1962: TO KILL A MOCKINGBIRD 1 nomination