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Seth Gilliam

Seth Gilliam

Seth Gilliam (November 5, 1968) is an American screen and stage actor. He is most known as Father Gabriel on AMC's post-apocalyptic series The Walking Dead, first appearing in Season 5.

He is also known for his HBO television roles, first as corrections officer-turned-prisoner Clayton Hughes on Oz, and later as Baltimore police detective promoted to Sergeant, Ellis Carver on The Wire. On both of these series, he co-starred with Lance Reddick and J.D. Williams. Another of his major recurring roles was on the TV series Teen Wolf as Dr. Alan Deaton.

He had a recurring role during the seventh season of The Cosby Show as Aaron Dexter (boyfriend of Erika Alexander's character Pam), Law and Order: Criminal Intent, and Law and Order: Trial by Jury. He's had a number of guest roles in other shows such as CSI: Miami, Nurse Jackie, Skins, Person of Interest, The Good Wife, and Bull.

His feature film credits include his role as Sergeant Steven Altameyer in Courage Under Fire (1996) and Private Sugar Watkins in the action movie Starship Troopers (1997). His other films include Personal Velocity (2002), Did You Hear About the Morgans? (2009), and Still Alice (2014).

The Lady of the Lake

The Lady of the Lake

2024

as Adam Schultz

The Walking Dead: The Ones Who Live

The Walking Dead: The Ones Who Live

2024

as Gabriel Stokes

The Zombie Wedding

The Zombie Wedding

2023

as Reverend Harry Crump

Teen Wolf: The Movie

Teen Wolf: The Movie

2023

as Dr. Alan Deaton

City on a Hill

City on a Hill

2019

as Jasper Fields

Silver Lake

Silver Lake

2018

as Jeff

Change in the Air

Change in the Air

2018

as Officer Payne

Police State

Police State

2018

as Officer Grady

Bull

Bull

2016

as Dr. Poulson

Still Alice

Still Alice

2014

as Frederic Johnson

The Blacklist

The Blacklist

2013

as Larry Whitaker

Elementary

Elementary

2012

as Dr. Ira Wallace

The Skinny

The Skinny

2012

as Testing Van Doc

Person of Interest

Person of Interest

2011

as Detective Des Franklin

Teen Wolf

Teen Wolf

2011

as Alan Deaton

The Walking Dead

The Walking Dead

2010

as Gabriel Stokes

Betrayed

Betrayed

2010

as Roger Waite

Did You Hear About the Morgans?

Did You Hear About the Morgans?

2009

as U.S. Marshal Lasky

The Good Wife

The Good Wife

2009

as Jacob Rickter

The People v. Leo Frank

The People v. Leo Frank

2009

as Jim Conley

Sympathetic Details

Sympathetic Details

2008

as Raymond

The Wire: The Last Word

The Wire: The Last Word

2007

The Wire Odyssey

The Wire Odyssey

2007

as Self

Tapping the Wire

Tapping the Wire

2007

as Self

Criminal Minds

Criminal Minds

2005

as Lyle Johnson

The Great New Wonderful

The Great New Wonderful

2005

as Clayton

Law & Order: Trial by Jury

Law & Order: Trial by Jury

2005

as Terence Wright

CSI: Miami

CSI: Miami

2002

The Wire

The Wire

2002

as Ellis Carver

The Wire

The Wire

2002

as Detective Ellis Carver

The Wire

The Wire

2002

as Sergeant Ellis Carver

Personal Velocity

Personal Velocity

2002

as Vincent

Law & Order: Criminal Intent

Law & Order: Criminal Intent

2001

as Detective Daniels

Punks

Punks

2000

as Marcus

Starship Troopers

Starship Troopers

1997

as Private Sugar Watkins

Oz

Oz

1997

as Clayton Hughes

Tar

Tar

1996

as Tyrone

Courage Under Fire

Courage Under Fire

1996

as Stephen Altameyer

Heading Home

Heading Home

1995

as Willie

Jefferson in Paris

Jefferson in Paris

1995

as James Hemings

Assault at West Point: The Court-Martial of Johnson Whittaker

Assault at West Point: The Court-Martial of Johnson Whittaker

1994

as Cadet Johnson C. Whittaker

Mr. Wonderful

Mr. Wonderful

1993

as Emergency Room Doctor (unconfirmed)

Joey Breaker

Joey Breaker

1993

as Jeremy Brasher

In the Eyes of a Stranger

In the Eyes of a Stranger

1992

Law & Order

Law & Order

1990

as Michael´s Attorney

Law & Order

Law & Order

1990

as Babatunde Amoda

The Cosby Show

The Cosby Show

1984

as Aaron Dexter

Ride or Die

Ride or Die

as Creon