When 16-year-old Sabrina cracks the cryptic Parallax, she’s recruited to track down a serial killer... who might not be from this world. Starring Anya Chalotra and Chance Perdomo. New episodes Tuesdays.

Cast: Sabrina – Anya Chalotra Benny – Chance Perdomo Fergus – Samuel Adewunmi Harry – Enzo Cilenti Lynn – Leanne Best Mr Ahmed – Nabil Elouahabi Isabella – Hera Hilmar Efrat – Olivia Popica Ken – Akie Kotabe Other parts: Carl Prekopp, George Georgiou, Hugo Dryden, Clare Corbett, Kerry Shale

Production Team: Written & Created by Brett Neichin with additional writing by Janina Matthewson Script editing by Mike Walker Music by Benbrick and Mark Henry Phillips Editing & Sound Design by Steve Bond Sound Assistant, Makashe Ogbon Assistant Producer, Eleanor Mein Trails by Jack Soper

Produced by Emma Hearn Director and Executive Producer, John Scott Dryden Commissioning Editor, Jason Phipps Commissioning Producers: Rachel Simpson, Ella Woods and Eli Sessions

Recorded at Sonica Studios, London

The Cipher is a Goldhawk Production commissioned by BBC Sounds.