Both actors are signed on for five-episode arcs. Leonard will play Roger Kadar, PhD, an obsessive but gifted scientist, while Reuben will play Marina Perlata, an aide to Wyle's Tom Mason.
Robert Sean Leonard was most recently seen on Broadway in Born Yesterday. Additional Broadway credits include The Violet Hour, Long Day's Journey Into Night, The Invention of Love, for which he won a Tony, and many more. His extensive film history includes Dead Poets Society, Much Ado About Nothing, and The Age of Innocence. From 2004 to its recent final season, Leonard played the role of Dr. James Wilson on the Fox drama House.
Reuben's stage credits include the Public Theater's production of Stuff Happens. She is best known for her work on NBC's ER.