
Filmography

The Simpsons
1989 · Doctor (voice)

Phineas and Ferb
2007 · Martin the News Vendor (voice)

The Kelly Clarkson Show
2019 · Self

The Daily Show
1996 · Self - Guest

Friends
1994 · Jeffrey Rosen

The Late Show with Stephen Colbert
2015 · Self

Conan
2010 · Self

Saturday Night Live
1975 · Manuel (uncredited)

The View
1997 · Self

Jeopardy!
1984 · Self

Sesame Street
1969 · Actor

LIVE with Kelly and Mark
1988 · Actor

Jimmy Kimmel Live!
2003 · Self - Guest

The Jennifer Hudson Show
2022 · Self

The Pitt
2025 · Dr. Michael 'Robby' Robinavitch, Executive Producer

ER
1994 · John Carter

The Ellen DeGeneres Show
2003 · Self

25 Words or Less
2018 · Self

Good Day Live
2001 · Self

Golden Globe Awards
1944 · Self - Nominee

Steve
2017 · Self

Falling Skies
2011 · Thomas 'Tom' Mason, Director
The Tony Danza Show
2004 · Self - Guest

The Larry Sanders Show
1992 · Noah Wyle

Lab Rats
2012 · Dr. Evans

The Librarians
2014 · Flynn Carsen, Writer

Drunk History
2013 · Thomas Nast

Angie Tribeca
2016 · Lewis Alcindor

Leverage: Redemption
2021 · Harry Wilson, Director

Che tempo che fa
2003 · Self

Who Do You Think You Are?
2010 · Self

Good Hang with Amy Poehler
2025 · Self

Donnie Darko
2001 · Prof. Kenneth Monnitoff

A Few Good Men
1992 · Cpl. Jeffrey Barnes

Variety & CNN Actors on Actors
2025 · Self

The Romanoffs
2018 · Ivan

Unscripted
2005 · Noah Wyle

The Emmy Awards
1949 · Self

Enough
2002 · Robbie

The Librarian: Quest for the Spear
2004 · Flynn Carsen

The Red Line
2019 · Daniel Calder

The Librarian: Return to King Solomon's Mines
2006 · Flynn Carsen, Producer

Mark Felt: The Man Who Brought Down the White House
2017 · Stan Pottinger

Pirates of Silicon Valley
1999 · Steve Jobs

The Librarian: The Curse of the Judas Chalice
2008 · Flynn Carsen, Producer

Nothing but the Truth
2008 · Avril Aaronson

W.
2008 · Don Evans

White Oleander
2002 · Mark Richards

Swing Kids
1993 · Emil Lutz

Lust in the Dust
1985 · Young Man (uncredited)

Scenes of the Crime
2002 · Seth

Tab Hunter Confidential
2015 · Self

NBC 75th Anniversary Special
2002 · Self

The World Made Straight
2015 · Leonard

Fail Safe
2000 · Buck

An American Affair
2008 · Mike Stafford

There Goes My Baby
1994 · Finnegan

The Myth of Fingerprints
1997 · Warren, Associate Producer

Creative Arts Emmy Awards
2006 · Self - Presenter

The Californians
2005 · Gavin Ransom

At the Gates
2023 · Peter Barris

Queen of the Lot
2010 · Aaron Lambert

Crooked Hearts
1991 · Ask Warren

Shot
2017 · Mark Newman

FEEL
2025 · Sitter 20

Guinevere
1994 · Lancelot

Can't Stop Dancing
1999 · Poe

Below the Beltway
2010 · Hunter Patrick

Teen Choice Awards
1999 · Self

Snake & Mongoose
2013 · Arthur Spear
Cut
TBA · Earnshaw

Fall of Knipple
2003 · Ed