Portrait of Seth Gilliam

Seth Gilliam

Acting

Biography

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).

Born: November 5, 1968

Place of Birth: Washington Heights, New York, USA

Filmography

2025
Ride or Die

as Creon

2025
Suits LA

as Dean Harris

2024
The Lady of the Lake

as Adam Schultz

2023
The Zombie Wedding

as Reverend Harry Crump

2023
Teen Wolf: The Movie

as Dr. Alan Deaton

2019
City on a Hill

as Jasper Fields

2018
2018
Change in the Air

as Officer Payne

2018
Police State

as Officer Grady

2016
Bull

as Dr. Poulson

2014
Still Alice

as Frederic Johnson

2013
The Blacklist

as Larry Whitaker

2012
Elementary

as Dr. Ira Wallace

2012
The Skinny

as Testing Van Doc

2011
Homeland

as Chaplin

2011
Person of Interest

as Des Franklin

2011
Teen Wolf

as Alan Deaton

2010
The Walking Dead

as Gabriel Stokes

2009
Did You Hear About the Morgans?

as U.S. Marshal Lasky

2009
The Good Wife

as Jacob Rickter

2007
2007
2005
Criminal Minds

as Lyle Johnson

2005
2002
The Wire

as Ellis Carver

2002
2001
Law & Order: Criminal Intent

as Detective Daniels

2000
Punks

as Marcus

1997
Starship Troopers

as Private Sugar Watkins

1997
Oz

as Clayton Hughes

1996
Tar

as Tyrone

1996
Courage Under Fire

as Stephen Altameyer

1995
Heading Home

as Willie

1995
Jefferson in Paris

as James Hemings

1993
Mr. Wonderful

as Emergency Room Doctor (unconfirmed)

1993
Joey Breaker

as Jeremy Brasher

1990
Law & Order

as Michael´s Attorney

1990
Law & Order

as Babatunde Amoda

1984
The Cosby Show

as Aaron Dexter