Leon Addison Brown

Character: Steven Joyner

Mark Boone Junior

Character: Dr. Eduard Gillespie

Evan Jonigkeit

Character: Dr. Raphael Clearwater

Jeffrey Wright

Character: Vincent Daugherty

Whoopi Goldberg

Character: Dr. Andrea Hart

Brooks Ashmanskas

Character: Todd Jenkins

Lewis Black

Character: Roy Altman

Joel de la Fuente

Character: Mark Nava

Hunter Parrish

Character: Milo Kramer

Alec Baldwin

Character: Proctor Carlisle

William Atticus Parker

Character: Anton Kantoliev

Steven Maier

Character: Bradley Atkinson

David Pittu

Character: Domonick Calderon

Andy Karl

Character: Greg Meyers

Ward Horton

Character: Miles Zimmerman

Michelangelo Milano

Character: Frank Webster

Jaden Michael

Character: Gregori Kantoliev

Sabina Friedman-Seitz

Character: Kate Sullivan

Dan Finnerty

Character: Levi Walker

Will Hochman

Character: Charles

Adam Piacente

Character: Alan Kantoliev