| JonBenet Ramsey / JonBenet Ramsey Auditionee / Herself | Hannah Cagwin | |
| JonBenet Ramsey Auditionee / Herself | Aeona Cruz | |
| JonBenet Ramsey Auditionee / Herself | Liv Bagley | |
| JonBenet Ramsey Auditionee / Herself | Shylee Sagle | |
| JonBenet Ramsey Auditionee / Herself | Danika Toolson | |
| JonBenet Ramsey Auditionee / JonBenet Ramsey Dance Double / Herself | Nicole Hamilton | |
| JonBenet Ramsey Auditionee / Herself | Emma Winslow | |
| JonBenet Ramsey Auditionee / Herself | Elle Walker | |
| Officer French / John Ramsey Auditionee / Himself | Jerry Cortese | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Kit Thompson | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Amy Dowd | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Teresa Cocas | |
| Patsy Ramsey Auditionee / Herself | Stephanie Federico | |
| Patsy Ramsey Auditionee / Herself | Tamara Hutchins | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Deb Hultgren | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Ronda Belser | |
| Patsy Ramsey Auditionee / Herself | Dorinda Dercar | |
| Patsy Ramsey Auditionee / Herself | Carolyn Strauss
 | |
| Patsy Ramsey Auditionee / Herself | Aspen Rader | |
| Officer Veitch / John Ramsey Auditionee / Himself | J. Michael Sterling | |
| John Ramsey / John Ramsey Auditionee / Himself | Hack Hyland | |
| John Ramsey / John Ramsey Auditionee / Himself | Gary Foster | |
| Himself - John Ramsey Auditionee | Ed Hickok | |
| John Ramsey Auditionee / Himself | Gary J. Neuger | |
| John Ramsey / John Ramsey Auditionee / Himself | Chuck Fiorella | |
| John Ramsey Auditionee / Himself | Robert Toomey | |
| John Ramsey Auditionee / Himself | Mark Taylor | |
| John Ramsey / John Ramsey Auditionee / Himself | Jay Benedict Brown | |
| Coroner | Rand Moritzky | |
| Police Chief / Police Chief Auditionee / Himself | William Tidwell | |
| Police Chief Auditionee / Himself | Blake Curton | |
| Police Chief Auditionee / Himself | Rj Clay | |
| Police Chief Auditionee / Himself | John Bronson | |
| Reporter / Police Chief Auditionee / Himself | Dale Strom | |
| Police Chief Auditionee / Himself | Carlos Martinez | |
| Police Chief Auditionee / Himself | Michael Kennedy | |
| Police Chief Auditionee / Himself | Timothy Ackerman | |
| Police Chief Auditionee / Himself | Casey Lloyd | |
| Police Chief Auditionee / Himself | Mark Canjar | |
| Police Chief Auditionee / Himself | Dan Davidson | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Marian Rothschild | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Suzanne Yazzie | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Laura Lee | |
| John Ramsey / John Ramsey Auditionee / Himself | Chris Mueser | |
| Patsy Ramsey / Patsy Ramsey Auditionee / Herself | Kaye Taavialma | |
| Patsy Ramsey Auditionee / Herself | Jacqui Pugh | |
| John Ramsey / John Ramsey Auditionee / Himself | Paul Crumby | |
| Burke Ramsey Auditionee / Himself | Ryan Haskell | |
| Burke Ramsey Auditionee / Himself | Taylor Hollenback | |
| Burke Ramsey Auditionee / Himself | Jase Wiedeman | |
| Burke Ramsey Auditionee / Himself | Tre Penna | |
| Burke Ramsey Auditionee / Himself | Riley Hastings | |
| Burke Ramsey Auditionee / Himself | Sean Legg | |
| Burke Ramsey / Burke Ramsey Auditionee / Himself | Luca Rodriguez | |
| Burke Ramsey Auditionee / Himself | Joe Brienza | |
