

In a parallel present where the latest must-have gadget for any busy family is a 'Synth' - a highly-developed robotic servant that's so similar to a real human it's transforming the way we live.

Katherine Parkinson
Laura Hawkins

Gemma Chan
Anita / Mia

Colin Morgan
Leo Elster

Tom Goodman-Hill
Joe Hawkins

Lucy Carless
Mattie Hawkins

Emily Berrington
Niska

Ruth Bradley
DI Karen Voss

Theo Stevenson
Toby Hawkins

Pixie Davies
Sophie Hawkins

Ivanno Jeremiah
Max