Played by James Nesbitt
(Father of the missing boy, Oliver)

"He feels guilty that his son went. He feels it was his fault that, as you know, Tony took his eye off the ball for a minute. It doesn’t matter how much he convinces himself — he feels that guilt and you never get over that. He sees his little boy in his head every time he blinks. And so that obsession to try and redeem himself and everything in his life — it’s tough." — James Nesbitt on his character

Played by Tchéky Karyo
(Lead French police detective)

"Sometimes when I imagine people being able to forgive, oh this is so incredible. And would I be able to do that, or would I be able to forget? I can understand Tony doesn’t want to give up." — Tchéky Karyo on relating to the story

Played by Frances O'Connor
(Tony's wife and Oliver's mother)

"I related instantly to the story. I did a little bit of research about what it’s like to for people whose children have gone missing. But I think, for me, I just had to use my imagination. Because it’s every parent’s worst nightmare." — Frances O'Conner on relating to the story

Played by Jason Flemyng
(British liaison officer assigned to the case)

"Mark Walsh is the British liaise officer so he’s in France at the same time as the tragedy happens. And just by proxy becomes the assigned liaise officer … I think Mark, as the character who has a kid as well who’s in the story, it’s deeply affecting him. You cannot be affected and not be compassionate. So I think that’s really the role he plays. He’s like this sort of linchpin of sympathy and affection for people who are basically fish out of water in a place that they don’t understand." — Jason Flemyng on his character

Played by Emilie Duquenne
(Local gendarme on the case)

"She's a young cop passionate about her job who wants to be as great a cop as Baptise, who is played by Tchéky Karyo. And you will see her evaluate. And she's kind of a very ambitious girl. And she has a lot of empathy for Tony and Emily." — Emilie Duquenne on her character