(2001) Donnie Darko

as Prof. Kenneth Monnitoff

(1992) A Few Good Men

as Cpl. Jeffrey Barnes

(1999) Pirates of Silicon Valley

as Steve Jobs

(2002) Enough

as Robbie

(2008) An American Affair

as Mike Stafford

(2002) Scenes of the Crime

as Seth

(2000) Fail Safe

as Buck

(2004) The Librarian: Quest for the Spear

as Flynn Carsen

(2006) The Librarian: Return to King Solomon's Mines

as Flynn Carsen

(2008) Nothing But the Truth

as Avril Aaronson

(2008) The Librarian: The Curse of the Judas Chalice

as Flynn Carsen

(2010) Queen of the Lot

as Aaron Lambert

(2005) The Californians

as Gavin Ransom

(1991) Crooked Hearts

as Ask Warren

(1994) There Goes My Baby

as Finnegan

(1997) The Myth of Fingerprints

as Warren

(1994) Guinevere

as Lancelot

(2013) Snake & Mongoose

as Arthur Spear

(2014) Phineas and Ferb: Night of the Living Pharmacists

as Martin the News Vendor (voice)

(2002) NBC 75th Anniversary Special

as Self

(2015) The World Made Straight

as Leonard

(2023) At the Gates

as Peter Barris

(2003) Fall of Knipple

as Ed

(2017) Mark Felt: The Man Who Brought Down the White House

as Stan Pottinger

(1999) Can't Stop Dancing

as Poe

(2015) Tab Hunter Confidential

as Self

(2017) Shot

as Mark Newman

(2002) White Oleander

as Mark Richards

(2008) W.

as Don Evans

(1993) Swing Kids

as Emil Lutz

(1985) Lust in the Dust

as Young Man (uncredited)

Cut

as Earnshaw

(2025) FEEL

as Sitter 20

(1969) Sesame Street

as ---

(2003) The Ellen DeGeneres Show

as Self

(2004) The Tony Danza Show

as Self - Guest

(1996) The Daily Show

as Self

(1988) LIVE with Kelly and Mark

as ---

(1997) The View

as Self

(1994) ER

as John Carter

(2005) Unscripted

as Self

(2001) Good Day Live

as Self

(1975) Saturday Night Live

as Self - Cameo (uncredited)

(2011) Falling Skies

as Thomas 'Tom' Mason

(1994) Friends

as Jeffrey Rosen

(2013) Drunk History

as Thomas Nast

(2010) Who Do You Think You Are?

as Self

(2007) Phineas and Ferb

as Martin the News Vendor (voice)

(2012) Lab Rats

as Dr. Evans

(2014) The Librarians

as Flynn Carsen

(1999) Teen Choice Awards

as Self - Nominee

(2016) Angie Tribeca

as Lewis Alcindor

(2019) The Red Line

as Daniel Calder

(2025) The Pitt

as Dr. Michael 'Robby' Robinavitch

(2018) 25 Words or Less

as Self

(2018) The Romanoffs

as Ivan

(2021) Leverage: Redemption

as Harry Wilson

(2010) Conan

as Self

(2019) The Kelly Clarkson Show

as Self

(2015) The Late Show with Stephen Colbert

as Self

(2022) The Jennifer Hudson Show

as Self

(2003) Jimmy Kimmel Live!

as Self