Truman Capote

Harper Lee

Perry Smith

Jack Dunphy

William Shawn

Dick Hickock

Warden Marshall Krutch

Marie Dewey

Linda Murchak

Alvin Dewey

Laura Kinney

Christopher

Barbara

Rose

Grayson

Williams

Porter

Car Rental Agent

Nancy Clutter

Lowell Lee Andrews

Danny Burke

Paul Dewey

Courthouse Guard

Roy Church

Harold Nye (as Robert McLaughlin)

Sheriff Walter Sanderson

Journalist

Journalist

Journalist

Old Man

Warren Hotel Desk Clerk

Alvin Dewey Jr.

Pete Holt

Dorothy Sanderson

Judge Roland Tate

Franklin Weeks

Richard Avedon

Jury Foreman

Ben Baron

NY Reporter

Young Prison Guard

Cruiser

Row Guard

Row Guard

Literary Enthusiast

Herb Clutter

Bonnie Clutter

Kenyon Clutter

Operator (voice)

Chaplain

Gloria Guiness (uncredited)

Babe Paley (uncredited)

Sophie Clutter (uncredited)

Directing

Acting

Writing

Production

Production

Production

Sound

Camera

Editing

Production

Production

Production

Art

Art

Art

Art

Costume & Make-Up

Costume & Make-Up

Costume & Make-Up

Art

Directing

Sound

Acting