
Seth Gilliam
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).
Acting (25 movies)

Starship Troopers
1997

The Great New Wonderful
2005

Change in the Air
2018

Teen Wolf: The Movie
2023

The Wire: The Last Word
2007

The Wire Odyssey
2007

Punks
2000

The Zombie Wedding
2023

In the Eyes of a Stranger
1992

Jefferson in Paris
1995

Tapping the Wire
2007

Did You Hear About the Morgans?
2009

Tar
1996

Still Alice
2014

Joey Breaker
1993

Personal Velocity
2002

Courage Under Fire
1996

The Lady of the Lake
2024

Assault at West Point: The Court-Martial of Johnson Whittaker
1994

Silver Lake
2018

The Skinny
2012

Police State
2018

Heading Home
1995

Mr. Wonderful
1993

Ride or Die
2025
| Title | Year | Job |
|---|