The Maestro (post-production
Mario Castelnuovo-Tedesco
 2018LAbyrinth (post-production
 2016-2018The Walking Dead (TV Series) 
Episode #8.10 (2018) ... Gregory
Episode #8.9 (2018) ... Gregory
How It's Gotta Be (2017) ... Gregory
Time for After (2017) ... Gregory (credit only)
The King, the Widow and Rick (2017) ... Gregory
Dr. Roberts
 2017Born Guilty 
Mr. Milk
 2016Moments of Clarity 
 2015-2016Aquarius (TV Series) 
Police Commissioner
Revolution 1 (2016) ... Police Commissioner
Old Ego Is a Too Much Thing (2015) ... Police Commissioner
 2015-201612 Monkeys (TV Series) 
Col. Jonathan Foster
Lullaby (2016) ... Col. Jonathan Foster
Tomorrow (2015) ... Col. Jonathan Foster
Yesterday (2015) ... Col. Jonathan Foster
 2015Couch Surfing USA (TV Series) 
 2013-2015Longmire (TV Series) 
Jeremiah Rains
Hector Lives (2015) ... Jeremiah Rains
Death Came in Like Thunder (2013) ... Jeremiah Rains
 2015Zoo (TV Series) 
Ronnie 'Dogstick' Brannigan
Eats, Shoots and Leaves (2015) ... Ronnie 'Dogstick' Brannigan
Emotional Contagion (2015) ... Ronnie 'Dogstick' Brannigan
Murmuration (2015) ... Ronnie 'Dogstick' Brannigan
The Cheese Stands Alone (2015) ... Ronnie 'Dogstick' Brannigan
Mr. Ellis
 2015/IIThe Gift (Short) 
Forrest Bobo
 2014-2015Salem (TV Series) 
Magistrate Hale
Wages of Sin (2015) ... Magistrate Hale (voice)
All Fall Down (2014) ... Magistrate Hale
Ashes to Ashes (2014) ... Magistrate Hale
Cat and Mouse (2014) ... Magistrate Hale
The House of Pain (2014) ... Magistrate Hale
 2014/IPony (Short) 
Uncle Jeff
 2014Christmas Eve, 1914 (TV Movie) 
Charles Dunne
 201424: Solitary (Video short) 
Handler (voice)
 2014Beware the Batman (TV Series) 
Manhunter / Paul Kirk
Unique (2014) ... Manhunter / Paul Kirk (voice)
 2014This Last Lonely Place 
Frank Devore
 2014Son of Batman (Video) 
Dr. Kirk Langstrom (voice)
 2014Small Time 
Dr. Thomas Casey
Gordon Shafer
 2014Justified (TV Series) 
Charles Monroe / Monroe
Good Intentions (2014) ... Charles Monroe
The Kids Aren't All Right (2014) ... Monroe
 2013Live at the Foxes Den 
Kenneth Whitman
 2008-2013The Mentalist (TV Series) 
Sheriff McAllister / Sheriff Thomas McAllister
Red John (2013) ... Sheriff McAllister (uncredited)
Fire and Brimstone (2013) ... Sheriff Thomas McAllister
Wedding in Red (2013) ... Sheriff McAllister
Black-Winged Redbird (2013) ... Sheriff McAllister
Red Hair and Silver Tape (2008) ... Sheriff McAllister
 2013/IILouder Than Words 
Dr. Lansen
 2013NTSF:SD:SUV (TV Series) 
Theodore Dent
The Great Train Stoppery (2013) ... Theodore Dent
 2013Being Human (TV Series) 
Liam McLean
Ruh-Roh (2013) ... Liam McLean
Always a Bridesmaid, Never Alive (2013) ... Liam McLean
Your Body Is a Condemned Wonderland (2013) ... Liam McLean
One Is Silver and the Other Pagan (2013) ... Liam McLean
What's Blood Got to Do With It? (2013) ... Liam McLean
 2012Tales of Everyday Magic 
Peter Keller
 2010-2012The Booth at the End (TV Series) 
The Man
Nothing More, Nothing Less (2012) ... The Man
The Rules of the Game (2012) ... The Man
It's Not Supposed to Be Easy (2012) ... The Man
A New Reality (2012) ... The Man
There Are Consequences (2012) ... The Man
 2010-2012Nikita (TV Series) 
Homecoming (2012) ... Percy
Crossbow (2012) ... Percy
Dead Drop (2012) ... Percy
Shadow Walker (2012) ... Percy
Wrath (2012) ... Percy
 2012Entanglement (TV Movie) 
Peter Keller
 2011Five (TV Movie) 
 2011Seeking Justice 
Lieutenant Durgan
 2011The Gadfly (Short) 
 2011Inside (TV Series) 
Inside (2011) ... H1ghway_man
Detective Carter
 2010The Death of Socrates 
Sergeant Mallory
 2010Ben 10: Ultimate Alien (TV Series) 
Warden Morgg / Trukk
...Nor Iron Bars a Cage (2010) ... Warden Morgg / Trukk (voice)
 2010Batman: The Brave and the Bold - The Videogame (Video Game) 
Sinestro (voice)
 2010Three Rivers (TV Series) 
'Sarge' Harold Estes
Status 1A (2010) ... 'Sarge' Harold Estes
 2010Below the Beltway 
Detective Gigante
 2010Day One (TV Movie) 
 2010Night and Day (TV Movie) 
Jay Graham
 2009Path Lights (Short) 
 2009Superman/Batman: Public Enemies (Video) 
Captain Atom (voice)
 2009Repo Chick 
Aldrich De La Chasse
 2009The Closer (TV Series) 
Detective Curt Landry
Waivers of Extradition (2009) ... Detective Curt Landry
 2009The Consultants 
 2009Year One 
 2009The Postcard (Short) 
Stan Katz
 2009Cook County 
 2009Women in Trouble 
Mr. Frost
 2008-2009The Spectacular Spider-Man (TV Series) 
Quentin Beck / Mysterio
Identity Crisis (2009) ... Quentin Beck (voice)
Reinforcement (2009) ... Quentin Beck / Mysterio (voice)
Blueprints (2009) ... Quentin Beck / Mysterio (voice)
Persona (2008) ... Quentin Beck (voice)
 2009Medium (TV Series) 
Mitchell Slocombe
A Person of Interest (2009) ... Mitchell Slocombe
 2009Batman: The Brave and the Bold (TV Series) 
The Eyes of Despero! (2009) ... Sinestro (voice)
 2009/ISparks (Short) 
Sid Harris
 2009Inside the Box (TV Movie) 
Fred O'Brien
 2008Criminal Minds (TV Series) 
Det. Hyde
Memoriam (2008) ... Det. Hyde
 2008Wainy Days (TV Series) 
Rebecca (2008) ... Cornelius
 2008Jericho (TV Series) 
John Smith
Patriots and Tyrants (2008) ... John Smith (uncredited)
Sedition (2008) ... John Smith (voice, uncredited)
Oversight (2008) ... John Smith (voice, uncredited)
 2008The Toe Tactic 
 2008Boston Legal (TV Series) 
A.D.A. Rex Swarthmore
Mad About You (2008) ... A.D.A. Rex Swarthmore (as Xander Berkley)
 2007Alibi (TV Movie) 
Lt. Adam Molnar
 2007Bones (TV Series) 
Dr. Bancroft
Intern in the Incinerator (2007) ... Dr. Bancroft
 2007Standoff (TV Series) 
Paul Fisk
No Strings (2007) ... Paul Fisk
Judge Moran
 2007The Batman (TV Series) 
Rumors (2007) ... Paul (voice)
 2007Law & Order: Criminal Intent (TV Series) 
George Pagolis
Albatross (2007) ... George Pagolis
 2006Seraphim Falls 
Railcrew Foreman
 2006The West Wing (TV Series) 
Franklin Hollis
Institutional Memory (2006) ... Franklin Hollis
 2006Out There 
Uncle Doug
 2006The Garage 
Doc Ruppert
 2006Magma: Volcanic Disaster (TV Movie) 
Peter Shepherd
 2006Women in Law (TV Series) 
Campbell Knox
Pilot (2006) ... Campbell Knox
 2004-2005Teen Titans (TV Series) 
Mento / General Immortus / Warp
Homecoming: Part 2 (2005) ... Mento / General Immortus (voice)
Homecoming: Part 1 (2005) ... Mento (voice)
How Long Is Forever? (2004) ... Warp (voice)
 2005North Country 
Arlen Pavich
 2005/IIStanding Still 
 2005Drop Dead Sexy 
 2005Law & Order (TV Series) 
Clay Pollack
Fluency (2005) ... Clay Pollack
 2003-2004CSI: Crime Scene Investigation (TV Series) 
Sheriff Rory Atwater
Formalities (2004) ... Sheriff Rory Atwater
Bad to the Bone (2004) ... Sheriff Rory Atwater
Grissom Versus the Volcano (2003) ... Sheriff Rory Atwater
After the Show (2003) ... Sheriff Rory Atwater
Invisible Evidence (2003) ... Sheriff Rory Atwater
 2004/IThe Last Full Measure (Short) 
 2004In Enemy Hands 
Admiral Kentz (as Xander Berkley)
 2004Human Error 
 2003The Stranger (Short) 
 2003/IIThe Third Date (Short) 
Tommy Tulip
 2003Karen Sisco (TV Series) 
Alvin Simmons
The One That Got Away (2003) ... Alvin Simmons
 2003Spider-Man (TV Series) 
Spider-Man Dis-Abled (2003) ... Mayor (voice)
 2003The Twilight Zone (TV Series) 
Harry Kellogg / Mario Devlin
Pharaoh's Curse (2003) ... Harry Kellogg / Mario Devlin
 2001-200324 (TV Series) 
George Mason
Day 2: 10:00 p.m.-11:00 p.m. (2003) ... George Mason
Day 2: 9:00 p.m.-10:00 p.m. (2003) ... George Mason
Day 2: 8:00 p.m.-9:00 p.m. (2003) ... George Mason
Day 2: 7:00 p.m.-8:00 p.m. (2003) ... George Mason
Day 2: 6:00 p.m.-7:00 p.m. (2003) ... George Mason
 2003Freelancer (Video Game) 
Dexter Hovis (voice)
Joey Patterson
 2002The Court (TV Series) 
Keith Nolan
Snakes in the Grass ... Keith Nolan
Back in the Bottle ... Keith Nolan
A Wing and a Prayer ... Keith Nolan
 2001Justice League (TV Series) 
General Brak / Soldier / Dignitary
The Enemy Below: Part II (2001) ... General Brak / Soldier (voice)
The Enemy Below (2001) ... General Brak / Dignitary / Soldier (voice)
 2001Going to California (TV Series) 
Clay Shelton
Lily of the Field (2001) ... Clay Shelton
 2001The Man from Elysian Fields 
Virgil Koster
 2001China: The Panda Adventure 
Dakar Johnston
Mr. DeMarco (segment "Non-Fiction")
 2001Batman Beyond (TV Series) 
Dr. Childes
The Curse of the Kobra: Part 2 (2001) ... Dr. Childes (voice)
The Curse of the Kobra: Part 1 (2001) ... Dr. Childes (voice)
 2001Wolf Lake (TV Series) 
Unaired Pilot (2001) ... Carl (uncredited)
 2000Shanghai Noon 
Van Cleef
Evan Wantz
 1999The Cherry Orchard 
 1999Rocket Power (TV Series) 
MacKenzie's Father
Hawaii Blues/Lost and Find (1999) ... MacKenzie's Father (voice)
 1999The Wild Thornberrys (TV Series) 
Stoat / Barking Deer #2
Show Me the Bunny (1999) ... Stoat (voice)
Born to Be Wild (1999) ... Barking Deer #2 (voice)
 1999Universal Soldier: The Return 
Dylan Cotner
 1999NetForce (TV Movie) 
Bo Tyler
 1998The Truth About Juliet 
 1998ER (TV Series) 
Detective Wilson
Good Luck, Ruth Johnson (1998) ... Detective Wilson
 1998Winchell (TV Movie) 
Lt. Clyde Webber
 1998Three (TV Series) 
Breakout ... Warden
 1997Eating Las Vegas (Short) 
Cynical Cabby
 1997Breast Men (TV Movie) 
Male Interviewer
 1997Extreme Ghostbusters (TV Series) 
In Your Dreams (1997) ... (voice)
Bird of Prey (1997) ... (voice)
 1995-1997Aaahh!!! Real Monsters (TV Series) 
Snav / Urbab / Timmy / ...
The Great Escape/Beast with Four Eyes (1997) ... Urbab (voice)
Watch the Watch/She Likes Me? (1997) ... Urbab / Timmy (voice)
The Lips Have It/Escape Claws (1997) ... Snav / Snob (voice)
Battle of the Century/A Perfect World (1997) ... Snav / Urbab (voice)
The Master Monster/Slumber Scare (1996) ... Urbab / Manager / Abraham Lincoln (voice)
 1996-1997Life with Louie (TV Series) 
Louie's Harrowing Halloween (1997) ... (voice)
Caddy on a Hot Tin Roof (1996) ... (voice)
 1997Players (TV Series) 
Marcus Flint
Con Law (1997) ... Marcus Flint
 1997Superman (TV Series) 
Sgt. Corey Mills
Prototype (1997) ... Sgt. Corey Mills (voice, as Xander Berkely)
 1997Women: Stories of Passion (TV Series) 
Reading for Pleasure (1997) ... Jimbo
Dr. Lamar
 1997Johnny Bravo (TV Series) 
Maitre D' / Movie Star / Melvin
Substitute Teacher/A Wolf in Chick's Clothing/Intensive Care (1997) ... Maitre D' / Movie Star / Melvin (voice)
 1997One Night Stand 
Charlie's Friend
 1997Air Force One 
Agent Gibbs
 1997Spawn (TV Series) 
Mike Stewart / Priest (voice)
 1997Duckman: Private Dick/Family Man (TV Series) 
 1997The Killing Jar 
Danny 'Figaretto' Evans
 1997High Incident (TV Series) 
Sergeant Hackworth
No Money Down (1997) ... Sergeant Hackworth
 1996I'd Lie for You and That's the Truth (TV Movie) 
Bad guy
 1996Persons Unknown 
 1996Apollo 11 (TV Movie) 
Buzz Aldrin
 1996For Hope (TV Movie) 
Date #4 (uncredited)
 1996The Tick (TV Series) 
Tick vs. Europe (1996) ... Octopaganini (voice, as Kander Berkeley)
 1996Mighty Ducks (TV Series) 
Phineas T. Viper
Beak to the Future (1996) ... Phineas T. Viper (voice)
 1996If These Walls Could Talk (TV Movie) 
John Barrows (segment "1974")
J.D. Johnson
 1996The Outer Limits (TV Series) 
Terry McCammon
Falling Star (1996) ... Terry McCammon
 1996Within the Rock (TV Movie) 
 1996The Rock 
Lonner (uncredited)
 1995-1996Gargoyles (TV Series) 
Coldsteel / Iago
Possession (1996) ... Coldsteel (voice)
Legion (1995) ... Iago
 1996Barb Wire 
Alexander Willis
 1996A Family Thing 
Sunburned Man
 1996Nash Bridges (TV Series) 
Neil Wojak
Genesis (1996) ... Neil Wojak
 1996A Kidnapping in the Family (TV Movie) 
Curtis Harrison
 1996Poison Ivy II 
Donald Falk
 1995The Fifteen Minute Hamlet (Short) 
 1995Pointman (TV Series) 
J.W. Mainwaring
'bout Money (1995) ... J.W. Mainwaring
 1995Leaving Las Vegas 
Cynical Cabbie
 1995Partners (TV Series) 
Christophe Nnngaarzh
Why Are the Blumenthals Living in My House? (1995) ... Christophe Nnngaarzh
 1995/IApollo 13 
Henry Hurt
Greg White
 1994New York Undercover (TV Series) 
Dr. Carl Weschler
Blondes Have More Fun (1994) ... Dr. Carl Weschler
 1994Good Advice (TV Series) 
A Chance of Showers (1994) ... Bernard
 1994Roswell (TV Movie) 
Sherman Carson
 1994Caroline at Midnight 
Joey Szabo
 1993Attack of the 50 Ft. Woman (TV Movie) 
Second Man
 1993The X-Files (TV Series) 
Dr. Hodge
Ice (1993) ... Dr. Hodge
 1993The Adventures of Brisco County Jr. (TV Series) 
Brett Bones
Riverboat (1993) ... Brett Bones
 1993Donato and Daughter (TV Movie) 
Russ Loring
 1993Crime & Punishment (TV Series) 
Simple Trust (1993)
 1993It's Nothing Personal (TV Movie) 
James Blakemore
 1992A Few Good Men 
Capt. Whitaker
 1992Deadly Matrimony (TV Movie) 
Trevor Lyle
 1992The Gun in Betty Lou's Handbag 
Mr. Marchat
 1992A Private Matter (TV Movie) 
Peter Zenner
 1991For the Boys 
Roberts, Vietnam
 1991Billy Bathgate 
Harvey Preston
 1991Terminator 2 
Todd Voight
 1991Murder in High Places (TV Movie) 
 1991Super Force (TV Series) 
Dr. Landru
There's a Light (1991) ... Dr. Landru
Come Under the Way: Part 2 (1991) ... Dr. Landru
 1991Not of This World (TV Movie) 
Bruce MacNamara
 1991Dillinger (TV Movie) 
 1990The Rookie 
Ken Blackwell
 1990Grand (TV Series) 
The Chickens Come Home to Roost (1990) ... Jeffrey
 1990The Grifters 
Lt. Pierson
 1990Short Time 
 1990The Guardian 
 1990The Last of the Finest 
Fast Eddie
 1990The Assassin 
John Patrick Earl
 1990Wiseguy (TV Series) 
Ray Spiotta
Romp (1990) ... Ray Spiotta
 1990The Gumshoe Kid 
Monty Griswold
 1990Internal Affairs 
Rudy Mohr
 1990Father Dowling Mysteries (TV Series) 
Carl Maxwell
The Exotic Dancer Mystery (1990) ... Carl Maxwell
 1989L.A. Takedown (TV Movie) 
 1987-1989Miami Vice (TV Series) 
Bailey / Tommy Lowell
Victims of Circumstance (1989) ... Bailey
Like a Hurricane (1987) ... Tommy Lowell
 1988Deadly Dreams 
Jack Torme
 1988CBS Summer Playhouse (TV Series) 
Dr. Noah Fredericks
Dr. Paradise (1988) ... Dr. Noah Fredericks
 1988J.J. Starbuck (TV Series) 
Robert 'Bobby' Tinch
Rag Doll (1988) ... Robert 'Bobby' Tinch
Ricky Fell
 1988The Lawless Land 
Ez Andy
Byron Cole
 1987The Verne Miller Story 
 1987Straight to Hell 
Preacher McMahon
 1986Moonlighting (TV Series) 
Symphony in Knocked Flat (1986) ... Scalper
 1986Sid and Nancy 
Bowery Snax
 1986The Twilight Zone (TV Series) 
Dave (segment "Take My Life...Please!")
Take My Life... Please!/Devil's Alphabet/The Library (1986) ... Dave (segment "Take My Life...Please!")
Kent Sutcliffe
 1983-1984The A-Team (TV Series) 
Sergeant Wilson / Baker
Showdown! (1984) ... Sergeant Wilson
 1984V (TV Series) 
Isaac Henley
Breakout (1984) ... Isaac Henley
 1984Falcon Crest (TV Series) 
Buzz Whitehead
Strangers (1984) ... Buzz Whitehead
 1984Riptide (TV Series) 
Taxi Driver
The Hardcase (1984) ... Taxi Driver
 1983Cagney & Lacey (TV Series) 
The Gang's All Here (1983) ... Maurice
 1983The Renegades (TV Series) 
The Big Time (1983) ... Gillette
 1983Remington Steele (TV Series) 
Dan Kowalski
Steele Crazy After All These Years (1983) ... Dan Kowalski
 1982Tales of the Gold Monkey (TV Series) 
Eric Fromby
Escape from Death Island (1982) ... Eric Fromby
 1982Hart to Hart (TV Series) 
Christopher Hawks
Harts on Their Toes (1982) ... Christopher Hawks
 1982McClain's Law (TV Series) 
To Save the Queen (1982) ... Peter
 1982The Incredible Hulk (TV Series) 
A Minor Problem (1982) ... Tom
 1981Open All Night (TV Series) 
Centerfold (1981) ... Medfly
 1981Fire on the Mountain (TV Movie) 
 1981M*A*S*H (TV Series) 
Give 'Em Hell, Hawkeye (1981) ... Marine
 1981Mommie Dearest 
Christopher Crawford (adult)