The theater at his alma mater, St. Louis Priory School, is named in his honor.
Though it appears that his feature debut was in Sophie's Choice (1982), Kline had actually completed The Pirates of Penzance (1983) before going on to co-star with Meryl Streep, but the release of 'Pirates' was sufficiently delayed, enabling 'Sophie' to receive an earlier release
Turned down the role of Batman (1989).
Won an Obie Award in 1980/1981 for his role in "The Pirates of Penzance".
Won two Tony Awards: in 1978 as Best Actor (Featured Role - Musical) for playing Bruce Granit in "On the Twentieth Century," and in 1981 as Best Actor (Musical) for playing The Pirate King in "The Pirates of Penzance," a performance he recreated in the film version of the same title, The Pirates of Penzance (1983). He was also nominated in 2004 as Best Actor (Play) for portraying Sir John Falstaff in Shakespeare's "Henry IV."