Gary Hershberger (born April 5, 1964) is an American actor and screenwriter. He is best known for his television roles as Mike Nelson in Twin Peaks (1989–1991; 2017) and Matthew Gilardi on Six Feet Under (2001–2002). Description above from the Wikipedia article Gary Hershberger, licensed under CC-BY-SA, full list of contributors on Wikipedia.
The Siege of Firebase Gloria
(Capt. A.J. 'Bugs' Moran)
Into the Homeland
(Whitey)
The Hero
Twin Peaks: The Missing Pieces
(Mike Nelson)
Paradise Motel
(Sam Kehoe)
Last Resort
(Night Eagle)
The Love She Sought
(Randy Meers)
New Alcatraz
(Goodman)
The Amati Girls
(Kevin)
To Heal a Nation
Beverly Hills Madam
(Justin)
Secrets from Another Place: Creating Twin Peaks
A Marriage Made in Heaven
(Andy Thorton)
Sneakers
(College-Aged Bishop)
Free Ride
(Dan Garten)
Tonight's the Night
(Ronnie)
The Heroes of Desert Storm
(Capt. Steve Tate)
Twin Peaks: Fire Walk with Me
(Mike Nelson)
My Man Adam
(Stan)
Twin Peaks
(Mike Nelson)
Sleeping with the Devil
(Jim)
Forever Love
(Chuck)
The Christmas Pageant
(Zach Wilson)
Faith, Hope & Love
(Tommy)
Perry Mason: The Case of the Avenging Ace
(Lieutenant Wilkins)
Magic Max
(Mike)
Twin Peaks
(Mike 'Snake' Nelson)
JAG
(Rodney Conger)
Tales from the Darkside
(Jeff)
Columbo
(Cooper Redman)
Knight Rider
(Nicholas Arkett)
Highway to Heaven
(Danny)
21 Jump Street
(Michael McCarter)
Grey's Anatomy
(Doug)
JAG
(Commander Crowley)
The West Wing
(Jerry)
Six Feet Under
(Kroehner Representative)
Murder, She Wrote
(Dave Perrin)
Murder, She Wrote
(Rob MacKenzie)
Murder, She Wrote
(Timothy Flint)
The O.C.
(Tom MacGinty)
Coach
(Carter Frederickson)
Family Law
(Abe Fitzhugh)
Renegade
(Deputy Morgan)
Pacific Blue
(Jim)