Casting | Rôle |
|---|
| Jim Carrey | Peter Appleton |
| Martin Landau | Harry Trimble |
| Laurie Holden | Adele Stanton |
| Gerry Black | Emmett Smith |
| David Ogden Stiers | Doc Stanton |
| Bob Balaban | Elvin Glyde |
| Jeffrey DeMunn | Mayor Ernie Cole |
| Hal Holbrook | Congressman Doyle |
| Brent Briscoe | Sheriff Cecil Coleman |
| Ron Rifkin | Kevin Bannerman |
| James Whitmore | Stan Keller |
| Susan Willis | Irene Terwilliger |
| Catherine Dent | Mabel |
| Brian Howe | Carl Leffert |
| Karl Bury | Bob Leffert |
| Chelcie Ross | Avery Wyatt |
| Amanda Detmer | Sandra Sinclair |
| Allen Garfield | Leo Kubelsky |
| Daniel von Bargen | Federal Agent Ellerby |
| Mario Roccuzzo | Jerry the Bartender |
| Earl Boen | Newsreel Announcer (voice) |
| Bruce Campbell | Roland the Intrepid Explorer |
| Cliff Curtis | The Evil But Handsome Prince Khalid |
| Michael Sloane | Kindly Old Professor Meredith |
| Garry Marshall | Studio Executive (voice) |
| Paul Mazursky | Studio Executive (voice) |
| Sydney Pollack | Studio Executive (voice) |
| Carl Reiner | Studio Executive (voice) |
| Rob Reiner | Studio Executive (voice) |
| Matt Damon | Luke Trimble (voice) |
| Shawn Doyle | Federal Agent Saunders |
| Frank Collison | Subpoena Server |
| Bill Gratton | Daley |
| Ginger Williams | Louise |
| Ken Magee | Coastal Engineer |
| Csilla Horvath | Nurse Muriel |
| April Ortiz | Vera |
| Larry Cox | Grauman's Usher |
| Julie Richardson | Grauman's Bon-Bon Girl |
| Scotty Leavenworth | Joey |
| Grant Vaught | Boy on Beach |
| Bob Wells | Reverend |
| Kevin DeMunn | Western Union Man |
| Matt G. Wiens | Spencer Wyatt |
| Jeffrey Adams | Principal Swing Dancer (uncredited) |
| Steven Lee Allen | Studio Guard (uncredited) |
| Kris Andersson | Dancer (uncredited) |
| Alvah Bessie | Self (Hollywood Ten, arrives, behind Cole) (archive footage) (uncredited) |
| Herbert J. Biberman | Self (Hollywood Ten, arrives) (archive footage) (uncredited) |
| Jennifer Blaire | Carl's Date (uncredited) |
| Chris Carver | Dancer (uncredited) |
| Lester Cole | Self (Hollywood Ten, arrives) (archive footage) (uncredited) |
| Lathan Crowe | Casanova (uncredited) |
| Corey Foxx | Photographer (uncredited) |
| Kate Greeke | Popcorn Girl (uncredited) |
| Gordon Hart | Swing Dancer (uncredited) |
| J. Edgar Hoover | Self (archive footage) (uncredited) |
| Jesse Jensen | Soldier (uncredited) |
| Mary Kircher | Swing Dancer (uncredited) |
| Tony Laanan | Grauman's Usher (uncredited) |
| Ring Lardner Jr. | Self (Hollywood Ten, arrives, behind Biberman) (archive footage) (uncredited) |
| John Howard Lawson | Self (Hollywood Ten, testifies) (archive footage) (uncredited) |
| Brian Libby | Studio Guard Hal (uncredited) |
| Melissa S. Markess | Swing Dancer (uncredited) |
| Amanda Melby | Young Mrs. Trimble (uncredited) |
| Christopher Metas | Cassanova (uncredited) |
| Samuel Ornitz | Self (Hollywood Ten, arrives) (archive footage) (uncredited) |
| Kimberly Prendez | Girl at Welcome Home Party (uncredited) |
| Maudie Purcell | Old Lady (uncredited) |
| Bubba Dean Rambo | Swing Dancer (uncredited) |
| George Ratliff | Dancer (uncredited) |
| Craig Richards | Studio Guard (uncredited) |
| Philip Romano | Sword fight (uncredited) |
| Dave Rosenbaum | Swing Dancer (uncredited) |
| Adrian Scott | Self (Hollywood Ten, arrives, behind Cole) (archive footage) (uncredited) |
| Gary Sommers | FBI Agent (uncredited) |
| Cole Spivey | Theater Patron (uncredited) |
| Robert Thorne | FBI Agent (uncredited) |
| Jack Truman | Party Member (uncredited) |
| Steven Paul Zsenyuk | Driver/Theater Patron (uncredited) |
