Recently, JASON ISAACS garnered critical acclaim for his starring turn as "Sir Mark Brydon" in the BBC mini-series The State Within. He is currently shooting a starring role opposite Viggo Mortensen in Good.

Isaacs also starred alongside Catherine Keener, Jennifer Aniston, Joan Cusack and Frances McDormand in Friends With Money, which was released in April 2006. He also starred with Robin Wright-Penn in the award-winning Nine Lives and Chumscrubber, which both premiered at the 2005 Sundance Festival.

In 2005, Isaacs starred in Harry Potter And The Goblet Of Fire, reprising his role as the sinister "Lucius Malfoy" in the new installment Harry Potter And The Order Of The Phoenix, released in July.

Isaacs was born in Liverpool, England and originally studied law, progressing to drama school after performing in more than 40 plays while in college. He made his feature film debut in The Tall Guy. Since then, Isaacs has created unforgettable characters in a multitude of major motion pictures, including double duty in Peter Pan, Black Hawk Down, Armageddon, Sweet November, The Patriot - a performance that garnered him a nomination from the London Film Critics' Circle - and the blockbuster Harry Potter And The Chamber Of Secrets. Isaacs' other film credits include Passionada, The Tuxedo, Windtalkers, End Of The Affair, Dragonheart, Divorcing Jack and The Last Minute. In addition, he has made several movies with his friend, director Paul Anderson, including the sci-fi thriller Event Horizon, Soldier and the British cult film Shopping.

On U.S. television, Isaacs has guest-starred on The West Wing and The Last Don II. On British television, he has starred in numerous series, mini-series and TV movies, including ones written and/or directed by Paul Greengrass, Danny Boyle and Lynda LaPlante. BROTHERHOOD marks his first starring role in an American TV series.

On stage, he created the role of "Louis" in the critically acclaimed Royal National Theatre production of Angels In America, and has performed to packed houses at the Royal Court Theatre, the Almeida Theatre, the King's Head and five times at the Edinburgh festival.