Filming has started on the third series of Humans.

With writers Sam Vincent and Jonathan Brackley leading the writing team, the series is set in a parallel present and explores what happens when the lines between humans and machines are blurred. 

Joining the cast this season is Catastrophe and Apple Tree Yard star Mark Bonnar. Mark Bonnar plays Neil Sommer, an intriguingly charming scientist on a government commission with whom Laura develops a strong personal connection. He joins series regulars Gemma Chan, Katherine Parkinson, Tom Goodman-Hill, Emily Berrington, Colin Morgan, Ivanno Jeremiah and Ruth Bradley.

One year after the dawn of consciousness, a decimated and oppressed Synth population fights to survive in a world that hates and fears them. In a divided Britain, Synths and Humans struggle to broker an uneasy peace, but when fractures within the Synth community itself start to appear, all hope of stability is threatened.

Set against the maelstrom of political chaos, the ethical complexities of the dawn of a new species play out across a thrilling multi-stranded narrative. As the synth family, Mia (Chan), Niska (Berrington) and Max (Jeremiah) continue to battle for their right to survival, Joe (Goodman-Hill) Laura (Parkinson) and their children Mattie, Toby and Sophie struggle to come to terms with the cataclysmic events of the last series and their deeply polarised views on the implications of the singularity.

Humans 3 provides a thrilling look at the evolution of technology and its effect on society; timely and relevant, the new season unfolds on a bigger scale than ever before, in a deeply divided Britain, and continues to ask the question, are sentient synths entitled to be treated as human?

The third series is due to air next year on Channel 4.