Education
Williams College; South Kent School.
Williams College; South Kent School.
A graduate of Williams College and The National Theater Institute at the Eugene O"Neill Theater Center (Fall 1970), the North Conway, New Hampshire-born Clapp has appeared in numerous television shows such as Check it Out! and Night Court as well as numerous stage plays. His film credits include Return of the Secaucus 7 (1979), Running (1979), Matewan (1987), Eight Men Out (1988, as Chicago White Sox catcher Ray Schalk), Termini Station (1989), The Rage: Carrie 2 (1999), Rules of Engagement (2000), Sunshine State (2002), and Flags of Our Fathers (2006) as United States Marine Corps General Holland Smith. He appeared in the Star Trek: Deep Space Nine episode "Vortex".
Most recently, he appeared as Coach Mad Maddox in The Game Plan.
In 2007 Clapp voiced Horny The Clown in the horror film Drive-Thru. Later that year, Clapp also appeared as Det Dick Walenski in "In Birth and Death," in Season 3 Episode 2 of Criminal Minds.
Clapp portrayed a corrupt police officer in a 2008 episode of Cold Case. He played the main antagonist General
Peter Randall in the Prototype video game.
Clapp plays the father of Ellen (Rose Byrne) in the F/X show Damages. In 2014, Clapp began playing a recurring role as Chaplain Orlovsky in Chicago Fire. The character is a Catholic priest and a Chaplain in the Chicago Fire Department.