Jesse Armstrong Creator, Executive Producer, Writer Hiam Abbass Marcia Roy Actor Nicholas Braun Greg Actor Brian Cox Logan Roy Actor Kieran Culkin Roman Roy Actor Dagmara Domińczyk Actor Peter Friedman Frank Actor Matthew Macfadyen Tom Actor Alan Ruck Connor Roy Actor J. Smith-Cameron Gerri Guest Star Sarah Snook Siobhan "Shiv" Roy Actor Jeremy Strong Kendall Roy Actor Rob Yang Lawrence Actor Natalie Gold Rava Roy Guest Star Eric Bogosian Gil Eavis Guest Star Sally Murphy Kira Guest Star Adam McKay Executive Producer Frank Rich Executive Producer Kevin J. Messick Executive Producer Will Ferrell Executive Producer Jane Tranter Executive Producer Mark Mylod Executive Producer, Director