Cailee Spaeny as Lyndon | Devs on FX

Cailee Spaeny

Lyndon

Stephen McKinley Henderson

as Stewart

Stewart is one of the top technical minds working in Amaya’s secret development division.

Karl Glusman

as Sergei

Sergei is an AI Coder at the technology company Amaya, and Lily’s boyfriend.

Alison Pill

as Katie

Katie is a gifted quantum physicist tapped by Forest to be his second in command at Amaya.