Netflix is expanding the cast of its Las Vegas-set drama series “The Roman.” Variety and Deadline report that Vincent D’Onofrio, Kate Mara, Clancy Brown, Thomas Sadoski and Jason Schwartzman have joined the show. D’Onofrio and Mara are described as series regulars, while the remaining newly announced actors also sign on for roles in the series. The drama is set in the world of Las Vegas casinos. Deadline notes that “The Roman” is executive produced by and stars Oscar Isaac. The outlets also indicate that these additions join an existing ensemble that includes Betty Gilpin, Alec Baldwin, David Costabile and others. Casting details beyond the actors’ involvement are not fully specified in the reports. Production and release timing are not stated in the provided excerpts, but the announcements confirm the further development of the Netflix drama and its larger ensemble cast.