Alexander Harper Berkeley (born December 16, 1955) is an American actor. He is known for his television roles as Sheriff Thomas McAllister on the crime drama The Mentalist, George Mason on the political thriller series 24, Percy Rose on the action thriller series Nikita, the Man on The Booth At The End and Gregory in AMC's The Walking Dead. His notable film roles include Todd Voight in Terminator 2: Judgment Day, Agent Gibbs in Air Force One, Bowery Snax in Sid and Nancy, Dr. Lamar in Gattaca, Trevor Lyle in Candyman and Ralph in Heat.

Xander Berkeley

Biography

Filmography

Oddities

Rust

Reagan

Butcher's Crossing

The Dark and the Wicked

City of Lies

Allegiant

Solace

Son of Batman

Transcendence

Seeking Justice

Faster

Kick-Ass

Superman/Batman: Public Enemies

Year One

Taken

Fracture

Seraphim Falls

North Country

Storytelling

The Man from Elysian Fields

Shanghai Noon

Universal Soldier: The Return

Amistad

One Night Stand

Air Force One

Gattaca

Bulletproof

The Rock

Barb Wire

Heat

Leaving Las Vegas

Apollo 13

Safe

A Few Good Men

Candyman

For the Boys

Billy Bathgate

Terminator 2: Judgment Day

The Rookie

The Grifters

Internal Affairs

The Fabulous Baker Boys

Sid and Nancy

Mommie Dearest