The Third Day: Autumn invites viewers deeper into the suspenseful world of The Third Day. Featuring members of The Third Day cast including Jude Law, viewers will follow the events of a single day in a real time 12 hour broadcast as live from the island. In one continuous and cinematic take, the rituals and traditions of the islanders are further revealed as the line between what is real and what is not increasingly blurs.
| Actor | Role |
|---|---|
 Jude LawSam | Sam |
 Katherine WaterstonJess | Jess |
 Florence WelchVeronica | Veronica |
 Mark Lewis JonesJason | Jason |
 John DagleishLarry | Larry |
 Anna Calder-MarshallMargaret | Margaret |
 Paul KayeThe Cowboy | The Cowboy |
 George PottsAlan | Alan |
 Joe BlakemoreSmiling Boy | Smiling Boy |
 Ria ZmitrowiczDancing Woman | Dancing Woman |
 Tom LawrenceTomo | Tomo |
 George JaquesYoung Esus | Young Esus |
| LLeona AllenCast Ensemble | Cast Ensemble |