
Dallas Mark Roberts (born May 10, 1970) is an American stage and screen actor. Roberts was born in Houston, Texas. He is a graduate of Juilliard School. He is primarily based in New York City, where he regularly appears in theatrical productions. Off-Broadway he has appeared in a revival of Lanford Wilson's Burn This, opposite Edward Norton and Catherine Keener; in Adam Rapp's Nocturne, for which he was nominated for a Drama Desk Award; and in Caryl Churchill's A Number, opposite Sam Shepard and later Arliss Howard, among others. He was slated to make his Broadway debut as Tom Wingfield in a revival of Tennessee Williams' The Glass Menagerie opposite Jessica Lange and Josh Lucas, but was replaced by Christian Slater during rehearsals Roberts' film work includes the screen adaptation of Michael Cunningham's A Home at the End of the World, opposite Colin Farrell and Robin Wright Penn, and supporting roles in Walk the Line and The Notorious Bettie Page, among others. He also had a recurring role on the Showtime drama The L Word. He starred in the AMC original series Rubicon where he plays Miles Fiedler, a genius intelligence analyst at a national think tank. He has guest starred in three episodes of the CBS series The Good Wife as the brother of the character Alicia Florrick, played by Julianna Margulies. Roberts is married to scenic designer Christine Jones. They have two sons.
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Glass Onion: A Knives Out Mystery
2022 · as Devon Debella

Walk the Line
2005 · as Sam Phillips

3:10 to Yuma
2007 · as Grayson Butterfield

The Grey
2012 · as Pete Henrick

Dallas Buyers Club
2013 · as David Wayne

Mayhem
2017 · as Lester McGill

Motherless Brooklyn
2019 · as Danny Fantl

Winter Passing
2006 · as Ray

My Friend Dahmer
2017 · as Lionel Dahmer

The Factory
2012 · as Gary Gemeaux

Flicka
2006 · as Gus

Ordinary World
2016 · as Mickey

The Notorious Bettie Page
2006 · as Scotty

The River Why
2010 · as Titus

Tell-Tale
2009 · as The Surgeon

Joshua
2007 · as Uncle Ned

Blood on the Promontory

Shrink
2009 · as Patrick