| FFranklin Delano FloydSelf - aka Clarence Hughes, aka Warren Marshall (archive footage) | Self - aka Clarence Hughes, aka Warren Marshall (archive footage) |
| JJoe FitzpatrickSelf - Special Agent, FBI | Self - Special Agent, FBI |
| KKaren ParsleySelf - Tonya's Friend / Former Dancer, Passions | Self - Tonya's Friend / Former Dancer, Passions |
| DDr. Charles EnglesSelf - Neurosurgeon | Self - Neurosurgeon |
| MMerle BeanSelf - Michael's Foster Mother | Self - Michael's Foster Mother |
| EErnest BeanSelf - Michael's Foster Father | Self - Michael's Foster Father |
| BBilly CarterSelf - Assistant Chief, Choctaw Police (OK) | Self - Assistant Chief, Choctaw Police (OK) |
| SSherry Fortson-BaileySelf - Sharon's Friend, Forest Park Senior High | Self - Sharon's Friend, Forest Park Senior High |
| LLynn ClemonsSelf - Sharon's Friend, Forest Park Senior High | Self - Sharon's Friend, Forest Park Senior High |
| JJenny FisherSelf - Sharon's Friend, Student Council Camp | Self - Sharon's Friend, Student Council Camp |
| HHeather LaneSelf - Dancer, Mons Venus | Self - Dancer, Mons Venus |
| MMichelle CupplesSelf - Michael's Babysitter | Self - Michael's Babysitter |
| EEdward KumiegaSelf - Assistant US Attorney, Western District Oklahoma | Self - Assistant US Attorney, Western District Oklahoma |
| MMark YanceySelf - Assistant US Attorney, Western District Oklahoma | Self - Assistant US Attorney, Western District Oklahoma |
| MMark DeasaroSelf - Detective, St. Petersburg Police (FL) | Self - Detective, St. Petersburg Police (FL) |
| MMatt BirkbeckSelf - Author, 'A Beautiful Child' & 'Finding Sharon' | Self - Author, 'A Beautiful Child' & 'Finding Sharon' |
| MMegan DufresneSelf - Sharon's Birth Daughter | Self - Sharon's Birth Daughter |
| MMary DufresneSelf - Megan's Adoptive Mother | Self - Megan's Adoptive Mother |
| AAshley RodriguezSelf -- Forensic Case Manager, NCMEC | Self -- Forensic Case Manager, NCMEC |
| SScott LobbSelf - Special Agent, FBI | Self - Special Agent, FBI |
| NNate FurrSelf - Special Agent, FBI | Self - Special Agent, FBI |
| SSandra WilletSelf - Suzanne's Mother | Self - Suzanne's Mother |
| CCliff SevakisSelf - Suzanne's Father | Self - Suzanne's Father |
| RRobert Christopher SmithFranklin Floyd | Franklin Floyd |
 Dana MackinSharon Marshall | Sharon Marshall |
 Meg SchimelpfenigJenny Fisher | Jenny Fisher |
 Sarah FrenchHeather Lane | Heather Lane |
| NNatalie De VincentiisCheryl Commesso | Cheryl Commesso |
 Mark ChinneryFBI Special Agent Joe Fitzpatrick | FBI Special Agent Joe Fitzpatrick |
