After the disappearance of a young scientist on a business trip, his son and wife struggle to cope, only to make a bizarre discovery years later – one that may bring him home.
| Actor | Role |
|---|---|
 Gillian AndersonMarika Whyte | Marika Whyte |
 Haley Joel OsmentErol Whyte | Erol Whyte |
 Rufus SewellGabriel 'Gabe' Whyte | Gabriel 'Gabe' Whyte |
 Victor GarberSal | Sal |
 Susanna FournierGrace | Grace |
 Kiara GlascoYoung Gracie | Young Gracie |
 John Paul RuttanYoung Erol | Young Erol |
 Sherry MillerMrs. Moore | Mrs. Moore |
 Brandon FirlaJimmy / Johnny | Jimmy / Johnny |
 Sarah ManninenAvril | Avril |
 Catherine BruhierHolland | Holland |
 Laura MiyataAya | Aya |
| JJonah WinebergJeremy | Jeremy |
| CChris HatcherHatcher | Hatcher |
 Asim WaliAsim | Asim |
| IIsaak SmithStudent | Student |
 Thomas HauffProfessor | Professor |
 Simon ReynoldsDr. Reynolds | Dr. Reynolds |
 Rupinder NagraReal Estate Agent | Real Estate Agent |
| LLouise NicolOld Woman in Princeton | Old Woman in Princeton |
| DDan MandicGabe Stand-In | Gabe Stand-In |
| WWilma DysonMarika Stand-In | Marika Stand-In |
| KKyle LimkildeErol Stand-In | Erol Stand-In |
| JJeff ChristensenSal Stand-In | Sal Stand-In |
| RRobbie CampbellYoung Erol Stand-In | Young Erol Stand-In |