Justin Marks Creator, Executive Producer, Writer J.K. Simmons Howard Silk , Prime Actor Olivia Williams Emily Burton Silk Actor Harry Lloyd Peter Quayle Actor Nazanin Boniadi Clare Actor Nicholas Pinnock Ian Shaw Actor Sara Serraiocco Baldwin Actor Betty Gabriel Naya Temple Actor Gary Gilbert Executive Producer Jordan Horowitz Executive Producer Morten Tyldum Executive Producer Keith Redmon Executive Producer Bard Dorros Executive Producer Amy Berg Executive Producer