| Jason Robards (Howard Hughes) |
| Paul Le Mat (Melvin Dummar) |
| Elizabeth Cheshire (Darcy Dummar) |
| Mary Steenburgen (Lynda Dummar) |
| Chip Taylor (Clark Taylor) |
| Melvin E. Dummar |
| Michael J. Pollard |
| Denise Galik (Lucy) |
| Gene Borkan |
| Lesley Margret Burton |
| Wendy Lee Couch |
| Marguerite Baierski |
| Janice King |
| Deborah Ann Klein |
| Theodora Thomas |
| Gloria Grahame (Mme Sisk) |
| Elise Hudson |
| Robert Ridgely (Wally 'M. Love' Williams) |
| Susan Peretz |
| Robert Wentz |
| Hal Marshall (Hal) |
| Naida Reynolds |
| Herbie Faye |
| Charles Napier (Ventura) |
| Jack Kehoe (Jim Delgado) |
| Pamela Reed (Bonnie Dummar) |
| Sonny Davis |
| Brendan Kelly |
| Danny Tucker |
| Shirley Washington |
| Cheryl Smith |
| Jason Ball |
| Darrell Devlin |
| Danny Dark |
| Linda Cardoso |
| Melissa Prophet |
| Garrie Kelly |
| John Thundercloud |
| Martine Beswicke |
| Charlene Holt (Mme Worth) |
| Melissa Williams (Sherry Dummar) |
| Antony Alda (Terry) |
| James Lyle Strong) |
| Rick Lenz (L'avocat) |
| Gary Goetzman (Fred, le cousind de Melvin) |
| John M. Levin (Un reporter) |
| Kathleen Sullivan (Une reporter) |
| Jack Verbois |
| Robert Reece (Le mari de Lynda) |
| Joseph Ragno (Maxwell, le premier attorney) |
| John Glover (Freese, le deuxième attorney) |
| Dabney Coleman (Le juge Keith Hayes) |
| Charles Horden |
| Joseph Walker Jr. (Le troisième attorney) |
| Robert S. Holman |
| Freeman Love (Un employé) |
| Joe Spinell |
| Tom Willett |
| Howard Hughes (Archives) |