Cristina Catalina appears in A Spy Among Friends.

A Spy Among Friends follows the defection of notorious British intelligence officer and KGB double agent, Kim Philby, played by Mare of Easttown's Pearce, through the lens of his complex relationship with MI6 colleague and close friend, Nicholas Elliott (Lewis).

Damian Lewis and Guy Pearce are to lead the line of Cold War drama limited series.

Spectrum Originals and BritBox UK have ordered the adaptation of Ben Macintyre’s book to series. It is produced by Sony Pictures Television, ITV Studios and Veritas Entertainment Group, with former Homeland exec producer Alexander Cary creator and exec producer alongside Lewis; via his production company, Ginger Biscuit Entertainment; and ITV Studios’ Patrick Spence.