Maximus Glutinous Bloatimus in all of his Roger Ailes-ian glory. Just to be clear, Maximus is playing Ailes in the untitled Showtime biopic that costars Naomi Watts, Seth MacFarlane, Sienna Miller and Simon McBurney. Jay Roach‘s Fair and Balanced, the other Ailes biopic, has John Lithgow playing Ailes. The costars are Charlize Theron, Nicole Kidman, Margot Robbie, John Lithgow, Allison Janney, Kate McKinnon and Malcolm McDowell.