Jesse Armstrong Creator Hiam Abbass Marcia Roy Actor Nicholas Braun Greg Actor Brian Cox Logan Roy Actor Kieran Culkin Roman Roy Actor Dagmara Domińczyk Karolina Actor Peter Friedman Frank Actor Matthew Macfadyen Tom Actor Alan Ruck Connor Roy Actor J. Smith-Cameron Gerri Actor Sarah Snook Siobhan "Shiv" Roy Actor Jeremy Strong Kendall Roy Actor Rob Yang Lawrence Actor Natalie Gold Rava Roy Guest Star Arian Moayed Stewy Guest Star Mark Linn-Baker Actor Annabelle Dexter-Jones Actor Scott Nicholson Actor Cherry Jones Actor Jeremy Shamos Actor Max Gordon Moore Actor Christina Rouner Actor Caitlin FitzGerald Actor Adam McKay Executive Producer Frank Rich Executive Producer Kevin J. Messick Executive Producer Will Ferrell Executive Producer Jane Tranter Executive Producer Mark Mylod Director Will Tracy Writer Regina Heyman Producer