Jay Scott Greenspan (born September 23, 1959), better known by the stage name Jason Alexander, is an American actor, comedian and voice artist. Alexander is best known for his leading role as George Costanza in the television series Seinfeld. He portrayed the lawyer Philip Stuckey in the film Pretty Woman (1990). He has also had an active career on stage, appearing in several Broadway musicals including Jerome Robbins' Broadway in 1989, for which he won the Tony Award as Best Leading Actor in a Musical. He appeared in the Los Angeles production of The Producers. He is the Artistic Director of "Reprise! Broadway's Best in Los Angeles", where he has directed several musicals. He also voiced the lead character in the animated series Duckman (1994–1997).