Daniel Day-Lewis as Daniel Plainview

Paul Dano as Paul Sunday / Eli Sunday

Kevin J. O'Connor as Henry

Ciarán Hinds as Fletcher Hamilton

Dillon Freasier as H.W. Plainview

Hope Elizabeth Reeves as Elizabeth

Colleen Foy as Mary Sunday

Barry Del Sherman as H. B. Ailman

David Willis as Abel Sunday

Hans Howes as Mr. Bandy

Sydney McCallister as Mary Sunday (young)

Paul F. Tompkins as Prescott

Kevin Breznahan as Signal Hill Man

Jim Meskimen as Signal Hill Married Man

Erica Sullivan as Signal Hill Woman

Randall Carver as Mr. Bankside

Coco Leigh as Mrs. Bankside

Jim Downey as Al Rose

David Warshofsky as H.M. Tilford

Charles Thomas Doyle as J.J. Carter

Russell Harvard as Adult H.W. Plainview

Martin Stringer as Silver Assay Worker

Matthew Braden Stringer as Silver Assay Worker

Jacob Stringer as Silver Assay Worker

Joseph Mussey as Silver Assay Worker

Harrison Taylor as Baby H.W.

Stockton Taylor as Baby H.W.

Christine Olejniczak as Mother Sunday

Kellie Hill as Ruth Sunday

Dan Swallow as Gene Blaize

Robert Arber as Charlie Wrightsman

Bob Bell as Geologist

David Williams as Ben Blaut

Joy Rawls as Eli Follower

Louise Gregg as Eli Follower

Amber Roberts as Eli Follower

John W. Watts as Oil Worker

Robert Caroline as Oil Worker

Barry Bruce as Oil Worker

Irene G. Hunter as Mrs. Hunter

John Chitwood as Little Boston Doctor

Colton Woodward as William Bandy

John Burton as L.P. Clair

Robert Barge as Bartender

Ronald Krut as Standard Oil Man

Huey Rhudy as Standard Oil Man

Steven Barr as Standard Oil Man

Robert Hills as H.W.'s Interpreter

Bob Bock as Priest

Vince Froio as Plainview Servant

Phil Shelly as Plainview Servant

Brad Carr as Signal Hill Man (uncredited)

Mary Elizabeth Barrett as Fanny Clark (uncredited)

Beau Smith as Blacksmith (uncredited)